Support for PC platform (#12)

* improvements for cross-platform compiling

* moved tactility-core to libs/

* splitup improvements

* remove git/gitmodules from freertos

* better platformbetter platform checks

* added build scripts

* delete mbedtls

* re-add mbedtls

* fixes and improvements

* added pc build

* simplify build scripts

* revert build scrpit

* updated builds

* fix for pc

* fix for pc

* fix for build

app-esp/src/board_config.h

@@ -0,0 +1,15 @@
+#pragma once
+
+#include "sdkconfig.h"
+
+// Supported hardware:
+#if defined(CONFIG_TT_BOARD_LILYGO_TDECK)
+#include "lilygo_tdeck.h"
+#define TT_BOARD_HARDWARE &lilygo_tdeck
+#elif defined(CONFIG_TT_BOARD_YELLOW_BOARD_24_CAP)
+#include "yellow_board.h"
+#define TT_BOARD_HARDWARE &yellow_board_24inch_cap
+#else
+#define TT_BOARD_HARDWARE NULL
+#error Replace TT_BOARD_HARDWARE in main.c with your own. Or copy one of the ./sdkconfig.board.* files into ./sdkconfig.
+#endif

app-esp/src/hello_world/hello_world.c

@@ -0,0 +1,24 @@
+#include "hello_world.h"
+#include "services/gui/gui.h"
+#include "services/loader/loader.h"
+
+static void app_show(App app, lv_obj_t* parent) {
+    UNUSED(app);
+
+    lv_obj_t* label = lv_label_create(parent);
+    lv_label_set_recolor(label, true);
+    lv_obj_set_width(label, 200);
+    lv_obj_set_style_text_align(label, LV_TEXT_ALIGN_CENTER, 0);
+    lv_label_set_text(label, "Hello, world!");
+    lv_obj_align(label, LV_ALIGN_CENTER, 0, 0);
+}
+
+const AppManifest hello_world_app = {
+    .id = "helloworld",
+    .name = "Hello World",
+    .icon = NULL,
+    .type = AppTypeUser,
+    .on_start = NULL,
+    .on_stop = NULL,
+    .on_show = &app_show
+};

app-esp/src/hello_world/hello_world.h

@@ -0,0 +1,5 @@
+#pragma once
+
+#include "app_manifest.h"
+
+extern const AppManifest hello_world_app;

app-esp/src/main.c

@@ -0,0 +1,22 @@
+#include "tactility.h"
+#include "board_config.h"
+
+// Apps
+#include "hello_world/hello_world.h"
+
+__attribute__((unused)) void app_main(void) {
+    static const Config config = {
+        /**
+         * Auto-select a board based on the ./sdkconfig.board.* file
+         * that you copied to ./sdkconfig before you opened this project.
+         */
+        .hardware = TT_BOARD_HARDWARE,
+        .apps = {
+            &hello_world_app
+        },
+        .services = { },
+        .auto_start_app_id = NULL
+    };
+
+    tactility_start(&config);
+}