[FL-2627] Flipper applications: SDK, build and debug system (#1387)

* Added support for running applications from SD card (FAPs - Flipper Application Packages)
* Added plugin_dist target for fbt to build FAPs
* All apps of type FlipperAppType.EXTERNAL and FlipperAppType.PLUGIN are built as FAPs by default
* Updated VSCode configuration for new fbt features - re-deploy stock configuration to use them
* Added debugging support for FAPs with fbt debug & VSCode
* Added public firmware API with automated versioning

Co-authored-by: hedger <hedger@users.noreply.github.com>
Co-authored-by: SG <who.just.the.doctor@gmail.com>
Co-authored-by: あく <alleteam@gmail.com>

applications/services/gui/modules/byte_input.h

@@ -0,0 +1,69 @@
+/**
+ * @file byte_input.h
+ * GUI: ByteInput keyboard view module API
+ */
+
+#pragma once
+
+#include <gui/view.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/** Byte input anonymous structure  */
+typedef struct ByteInput ByteInput;
+
+/** callback that is executed on save button press */
+typedef void (*ByteInputCallback)(void* context);
+
+/** callback that is executed when byte buffer is changed */
+typedef void (*ByteChangedCallback)(void* context);
+
+/** Allocate and initialize byte input. This byte input is used to enter bytes.
+ *
+ * @return     ByteInput instance pointer
+ */
+ByteInput* byte_input_alloc();
+
+/** Deinitialize and free byte input
+ *
+ * @param      byte_input  Byte input instance
+ */
+void byte_input_free(ByteInput* byte_input);
+
+/** Get byte input view
+ *
+ * @param      byte_input  byte input instance
+ *
+ * @return     View instance that can be used for embedding
+ */
+View* byte_input_get_view(ByteInput* byte_input);
+
+/** Set byte input result callback
+ *
+ * @param      byte_input        byte input instance
+ * @param      input_callback    input callback fn
+ * @param      changed_callback  changed callback fn
+ * @param      callback_context  callback context
+ * @param      bytes             buffer to use
+ * @param      bytes_count       buffer length
+ */
+void byte_input_set_result_callback(
+    ByteInput* byte_input,
+    ByteInputCallback input_callback,
+    ByteChangedCallback changed_callback,
+    void* callback_context,
+    uint8_t* bytes,
+    uint8_t bytes_count);
+
+/** Set byte input header text
+ *
+ * @param      byte_input  byte input instance
+ * @param      text        text to be shown
+ */
+void byte_input_set_header_text(ByteInput* byte_input, const char* text);
+
+#ifdef __cplusplus
+}
+#endif