Implemented TactilityKernel and DevicetreeCompiler, updated licenses & copyrights (#452)

**New features**

- Created a devicetree DTS and YAML parser in Python
- Created new modules:
  - TactilityKernel (LGPL v3.0 license)
  - Platforms/PlatformEsp32 (LGPL v3.0 license) 
  - Platforms/PlatformPosix (LGPL v3.0 license)
  - Tests/TactilityKernelTests

Most boards have a placeholder DTS file, while T-Lora Pager has a few devices attached.

**Licenses**

Clarified licenses and copyrights better.

- Add explanation about the intent behind them.
- Added explanation about licenses for past and future subprojects
- Added more details explanations with regards to the logo usage
- Copied licenses to subprojects to make it more explicit

TactilityKernel/Source/Driver.cpp

@@ -0,0 +1,188 @@
+#include <cstring>
+#include <ranges>
+#include <vector>
+
+#include <Tactility/concurrent/Mutex.h>
+#include <Tactility/Device.h>
+#include <Tactility/Driver.h>
+#include <Tactility/Error.h>
+#include <Tactility/Log.h>
+
+#define TAG LOG_TAG(driver)
+
+struct DriverInternalData {
+    Mutex mutex { 0 };
+    int use_count = 0;
+
+    DriverInternalData() {
+        mutex_construct(&mutex);
+    }
+
+    ~DriverInternalData() {
+        mutex_destruct(&mutex);
+    }
+};
+
+struct DriverLedger {
+    std::vector<Driver*> drivers;
+    Mutex mutex { 0 };
+
+    DriverLedger() {
+        mutex_construct(&mutex);
+    }
+
+    ~DriverLedger() {
+        mutex_destruct(&mutex);
+    }
+
+    void lock() {
+        mutex_lock(&mutex);
+    }
+
+    void unlock() {
+        mutex_unlock(&mutex);
+    }
+};
+
+static DriverLedger& get_ledger() {
+    static DriverLedger ledger;
+    return ledger;
+}
+
+#define ledger get_ledger()
+
+#define driver_internal_data(driver) static_cast<DriverInternalData*>(driver->internal.data)
+#define driver_lock(driver) mutex_lock(&driver_internal_data(driver)->mutex);
+#define driver_unlock(driver) mutex_unlock(&driver_internal_data(driver)->mutex);
+
+static void driver_add(Driver* driver) {
+    LOG_I(TAG, "add %s", driver->name);
+    ledger.lock();
+    ledger.drivers.push_back(driver);
+    ledger.unlock();
+}
+
+static bool driver_remove(Driver* driver) {
+    LOG_I(TAG, "remove %s", driver->name);
+
+    ledger.lock();
+    const auto iterator = std::ranges::find(ledger.drivers, driver);
+    // check that there actually is a 3 in our vector
+    if (iterator == ledger.drivers.end()) {
+        ledger.unlock();
+        return false;
+    }
+    ledger.drivers.erase(iterator);
+    ledger.unlock();
+
+    return true;
+}
+
+extern "C" {
+
+int driver_construct(Driver* driver) {
+    driver->internal.data = new(std::nothrow) DriverInternalData;
+    if (driver->internal.data == nullptr) {
+        return ENOMEM;
+    }
+    driver_add(driver);
+    return 0;
+}
+
+int driver_destruct(Driver* driver) {
+    // Check if in use
+    if (driver_internal_data(driver)->use_count != 0) {
+        return ERROR_INVALID_STATE;
+    }
+
+    driver_remove(driver);
+    delete driver_internal_data(driver);
+    driver->internal.data = nullptr;
+    return 0;
+}
+
+bool driver_is_compatible(Driver* driver, const char* compatible) {
+    if (compatible == nullptr || driver->compatible == nullptr) {
+        return false;
+    }
+    const char** compatible_iterator = driver->compatible;
+    while (*compatible_iterator != nullptr) {
+        if (strcmp(*compatible_iterator, compatible) == 0) {
+            return true;
+        }
+        compatible_iterator++;
+    }
+    return false;
+}
+
+Driver* driver_find_compatible(const char* compatible) {
+    ledger.lock();
+    Driver* result = nullptr;
+    for (auto* driver : ledger.drivers) {
+        if (driver_is_compatible(driver, compatible)) {
+            result = driver;
+            break;
+        }
+    }
+    ledger.unlock();
+    return result;
+}
+
+int driver_bind(Driver* driver, Device* device) {
+    driver_lock(driver);
+
+    int err = 0;
+    if (!device_is_added(device)) {
+        err = ERROR_INVALID_STATE;
+        goto error;
+    }
+
+    if (driver->start_device != nullptr) {
+        err = driver->start_device(device);
+        if (err != 0) {
+            goto error;
+        }
+    }
+
+    driver_internal_data(driver)->use_count++;
+    driver_unlock(driver);
+
+    LOG_I(TAG, "bound %s to %s", driver->name, device->name);
+    return 0;
+
+error:
+
+    driver_unlock(driver);
+    return err;
+}
+
+int driver_unbind(Driver* driver, Device* device) {
+    driver_lock(driver);
+
+    int err = 0;
+    if (!device_is_added(device)) {
+        err = ERROR_INVALID_STATE;
+        goto error;
+    }
+
+    if (driver->stop_device != nullptr) {
+        err = driver->stop_device(device);
+        if (err != 0) {
+            goto error;
+        }
+    }
+
+    driver_internal_data(driver)->use_count--;
+    driver_unlock(driver);
+
+    LOG_I(TAG, "unbound %s to %s", driver->name, device->name);
+
+    return 0;
+
+error:
+
+    driver_unlock(driver);
+    return err;
+}
+
+} // extern "C"