[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/debug/unit_tests/furi/furi_test.c

@@ -0,0 +1,63 @@
+#include <stdio.h>
+#include <furi.h>
+#include <furi_hal.h>
+#include "../minunit.h"
+
+// v2 tests
+void test_furi_create_open();
+void test_furi_valuemutex();
+void test_furi_concurrent_access();
+void test_furi_pubsub();
+
+void test_furi_memmgr();
+
+static int foo = 0;
+
+void test_setup(void) {
+    foo = 7;
+}
+
+void test_teardown(void) {
+    /* Nothing */
+}
+
+MU_TEST(test_check) {
+    mu_check(foo != 6);
+}
+
+// v2 tests
+MU_TEST(mu_test_furi_create_open) {
+    test_furi_create_open();
+}
+
+MU_TEST(mu_test_furi_valuemutex) {
+    test_furi_valuemutex();
+}
+
+MU_TEST(mu_test_furi_pubsub) {
+    test_furi_pubsub();
+}
+
+MU_TEST(mu_test_furi_memmgr) {
+    // this test is not accurate, but gives a basic understanding
+    // that memory management is working fine
+    test_furi_memmgr();
+}
+
+MU_TEST_SUITE(test_suite) {
+    MU_SUITE_CONFIGURE(&test_setup, &test_teardown);
+
+    MU_RUN_TEST(test_check);
+
+    // v2 tests
+    MU_RUN_TEST(mu_test_furi_create_open);
+    MU_RUN_TEST(mu_test_furi_valuemutex);
+    MU_RUN_TEST(mu_test_furi_pubsub);
+    MU_RUN_TEST(mu_test_furi_memmgr);
+}
+
+int run_minunit_test_furi() {
+    MU_RUN_SUITE(test_suite);
+
+    return MU_EXIT_CODE;
+}