Filesystem improvements and more (#148)

- Rename `assets` and `config` partitions to `system` and `data`
- Change partition type from `spiffs` to `fat`, so we can have sub-directories
- Fix crash when doing WiFi scan: Increased system event task size to 3kB. 
- Free up IRAM on ESP32 (it was required for the Core2, but I also freed up the same amount for Yellow Board)
- Introduced `Paths` objects that can be retrieved by `AppContext` and `ServiceContext`. Apps and services now have their own relative paths. Assets were re-arranged into the correct paths.
- Rename simulator window title to "Tactility"
- Refactored statusbar widget so it persists icon paths properly (it kept a const char* reference, but didn't copy it, so it crashed when the related std::string was destroyed)
- Created `Partitions.h` to expose some useful variables
- Moved USB config in various `sdkconfig`  (it was part of the "default" section, but it shouldn't be)
- Updated domain name

TactilityHeadless/CMakeLists.txt

@@ -6,7 +6,7 @@ set(CMAKE_CXX_STANDARD_REQUIRED ON)
 if (DEFINED ENV{ESP_IDF_VERSION})
     file(GLOB_RECURSE SOURCE_FILES Source/*.c*)
 
-    list(APPEND REQUIRES_LIST TactilityCore esp_wifi nvs_flash driver spiffs vfs fatfs )
+    list(APPEND REQUIRES_LIST TactilityCore esp_wifi nvs_flash driver spiffs vfs fatfs)
     if("${IDF_TARGET}" STREQUAL "esp32s3")
         list(APPEND REQUIRES_LIST esp_tinyusb)
     endif()
@@ -19,10 +19,10 @@ if (DEFINED ENV{ESP_IDF_VERSION})
     )
 
     if (NOT DEFINED TACTILITY_SKIP_SPIFFS)
-        set(ASSETS_SRC_DIR "${CMAKE_CURRENT_SOURCE_DIR}/../Data/assets")
-        spiffs_create_partition_image(assets ${ASSETS_SRC_DIR} FLASH_IN_PROJECT)
-        set(CONFIG_SRC_DIR "${CMAKE_CURRENT_SOURCE_DIR}/../Data/config")
-        spiffs_create_partition_image(config ${CONFIG_SRC_DIR} FLASH_IN_PROJECT)
+        # Read-only
+        fatfs_create_rawflash_image(system "${CMAKE_CURRENT_SOURCE_DIR}/../Data/system" FLASH_IN_PROJECT PRESERVE_TIME)
+        # Read-write
+        fatfs_create_spiflash_image(data "${CMAKE_CURRENT_SOURCE_DIR}/../Data/data" FLASH_IN_PROJECT PRESERVE_TIME)
     endif()
 
     add_definitions(-DESP_PLATFORM)