Moved and renamed files for consistent C code style (#463)

* **Documentation**
  * Added new C coding style guide detailing naming conventions for files, directories, macros, constants, variables, functions, and type definitions with illustrative examples.
  * Updated C++ coding style documentation with clarifications on C naming conventions and header directory organization patterns.

* **Refactor**
  * Updated header include paths throughout the codebase to use lowercase naming conventions consistently.

Platforms/PlatformEsp32/Source/error_esp32.cpp

@@ -0,0 +1,17 @@
+// SPDX-License-Identifier: Apache-2.0
+#include <tactility/error_esp32.h>
+
+error_t esp_err_to_error(esp_err_t error) {
+    switch (error) {
+        case ESP_OK:
+            return ERROR_NONE;
+        case ESP_ERR_INVALID_ARG:
+            return ERROR_INVALID_ARGUMENT;
+        case ESP_ERR_INVALID_STATE:
+            return ERROR_INVALID_STATE;
+        case ESP_ERR_TIMEOUT:
+            return ERROR_TIMEOUT;
+        default:
+            return ERROR_UNDEFINED;
+    }
+}