App Loading via Loader (#1)

* app loading wip

* various improvements

irq/isr stuff is now working
lvgl locking where needed
hello world now uses proper mutex for app unlocking
etc?

* various improvements

* cmsis_esp improvements

* implement interrupts

components/furi/src/app_i.h

@@ -0,0 +1,23 @@
+#pragma once
+
+#include "app_manifest.h"
+#include "thread.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct {
+    FuriThread* thread;
+    const AppManifest* manifest;
+    void* ep_thread_args;
+} App;
+
+const char* furi_app_type_to_string(AppType type);
+FuriThread* furi_app_alloc_thread(App* _Nonnull app, const char* args);
+App* furi_app_alloc(const AppManifest* _Nonnull manifest);
+void furi_app_free(App* _Nonnull app);
+
+#ifdef __cplusplus
+}
+#endif