Filesystem improvements and more (#148)

- Rename `assets` and `config` partitions to `system` and `data`
- Change partition type from `spiffs` to `fat`, so we can have sub-directories
- Fix crash when doing WiFi scan: Increased system event task size to 3kB. 
- Free up IRAM on ESP32 (it was required for the Core2, but I also freed up the same amount for Yellow Board)
- Introduced `Paths` objects that can be retrieved by `AppContext` and `ServiceContext`. Apps and services now have their own relative paths. Assets were re-arranged into the correct paths.
- Rename simulator window title to "Tactility"
- Refactored statusbar widget so it persists icon paths properly (it kept a const char* reference, but didn't copy it, so it crashed when the related std::string was destroyed)
- Created `Partitions.h` to expose some useful variables
- Moved USB config in various `sdkconfig`  (it was part of the "default" section, but it shouldn't be)
- Updated domain name

Tactility/Source/app/boot/Boot.cpp

@@ -18,7 +18,7 @@
 #define CONFIG_TT_SPLASH_DURATION 0
 #endif
 
-#define TAG "Boot"
+#define TAG "boot"
 
 namespace tt::app::boot {
 
@@ -90,11 +90,11 @@ static void onShow(TT_UNUSED AppContext& app, lv_obj_t* parent) {
     lv_obj_t* image = lv_image_create(parent);
     lv_obj_set_size(image, LV_PCT(100), LV_PCT(100));
 
-    if (hal::usb::isUsbBootMode()) {
-        lv_image_set_src(image, TT_ASSETS_BOOT_LOGO_USB);
-    } else {
-        lv_image_set_src(image, TT_ASSETS_BOOT_LOGO);
-    }
+    auto paths = app.getPaths();
+    const char* logo = hal::usb::isUsbBootMode() ? "logo_usb.png" : "logo.png";
+    auto logo_path = paths->getSystemPathLvgl(logo);
+    TT_LOG_I(TAG, "%s", logo_path.c_str());
+    lv_image_set_src(image, logo_path.c_str());
 
     lvgl::obj_set_style_bg_blacken(parent);