[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>

lib/toolbox/SConscript

@@ -7,6 +7,23 @@ env.Append(
     CPPPATH=[
         "#/lib/toolbox",
     ],
+    SDK_HEADERS=[
+        File("#/lib/toolbox/manchester_decoder.h"),
+        File("#/lib/toolbox/manchester_encoder.h"),
+        File("#/lib/toolbox/path.h"),
+        File("#/lib/toolbox/random_name.h"),
+        File("#/lib/toolbox/hmac_sha256.h"),
+        File("#/lib/toolbox/crc32_calc.h"),
+        File("#/lib/toolbox/dir_walk.h"),
+        File("#/lib/toolbox/md5.h"),
+        File("#/lib/toolbox/args.h"),
+        File("#/lib/toolbox/saved_struct.h"),
+        File("#/lib/toolbox/version.h"),
+        File("#/lib/toolbox/tar/tar_archive.h"),
+        File("#/lib/toolbox/stream/stream.h"),
+        File("#/lib/toolbox/stream/file_stream.h"),
+        File("#/lib/toolbox/stream/string_stream.h"),
+    ],
 )
 
 

lib/toolbox/hmac_sha256.h

@@ -1,3 +1,10 @@
+#pragma once
+
+#include "sha256.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
 
 typedef struct hmac_context {
     void (*init_hash)(const struct hmac_context* context);
@@ -25,3 +32,7 @@ void hmac_sha256_update(
     unsigned message_size);
 
 void hmac_sha256_finish(const hmac_sha256_context* ctx, const uint8_t* K, uint8_t* hash_result);
+
+#ifdef __cplusplus
+}
+#endif

lib/toolbox/saved_struct.h

@@ -4,6 +4,14 @@
 #include <stdbool.h>
 #include <stddef.h>
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 bool saved_struct_load(const char* path, void* data, size_t size, uint8_t magic, uint8_t version);
 
 bool saved_struct_save(const char* path, void* data, size_t size, uint8_t magic, uint8_t version);
+
+#ifdef __cplusplus
+}
+#endif

lib/toolbox/sha256.h

@@ -1,3 +1,9 @@
+#pragma once
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #define SHA256_DIGEST_SIZE 32
 #define SHA256_BLOCK_SIZE 64
 
@@ -12,3 +18,7 @@ void sha256_start(sha256_context* ctx);
 void sha256_finish(sha256_context* ctx, unsigned char output[32]);
 void sha256_update(sha256_context* ctx, const unsigned char* input, unsigned int ilen);
 void sha256_process(sha256_context* ctx);
+
+#ifdef __cplusplus
+}
+#endif