add flasher

flasher/firmware/README

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+
+This directory is intended for PlatformIO Unit Testing and project tests.
+
+Unit Testing is a software testing method by which individual units of
+source code, sets of one or more MCU program modules together with associated
+control data, usage procedures, and operating procedures, are tested to
+determine whether they are fit for use. Unit testing finds problems early
+in the development cycle.
+
+More information about PlatformIO Unit Testing:
+- https://docs.platformio.org/page/plus/unit-testing.html

flasher/firmware/manifest.json

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+{
+  "name": "AWTRIX Light",
+  "version": "0.29",
+  "home_assistant_domain": "AwtrixLight",
+  "funding_url": "https://blueforcer.de",
+  "new_install_prompt_erase": true,
+  "builds": [
+    {
+      "chipFamily": "ESP32",
+      "parts": [
+        {
+          "path": "bootloader.bin",
+          "offset": 4096
+        },
+        {
+          "path": "partitions.bin",
+          "offset": 32768
+        },
+        {
+          "path": "boot_app0.bin",
+          "offset": 57344
+        },
+        {
+          "path": "firmware.bin",
+          "offset": 65536
+        }
+      ]
+    }
+  ]
+}