chore: License and Notices for public release

Includes

fix: update .gitignore for cache files
remove old `TODO.md` before public release
fix: license and notices generally have no extension

.gitignore

@@ -273,3 +273,7 @@ compile_commands.json
 
 # CCLS
 .ccls-cache/
+
+## Local Additions
+.cache/
+.vscode/

.pre-commit-config.yaml

@@ -14,3 +14,9 @@ repos:
       -   id: trailing-whitespace
       -   id: check-added-large-files
       -   id: end-of-file-fixer
+  - repo: https://github.com/compilerla/conventional-pre-commit
+    rev: v3.4.0
+    hooks:
+      - id: conventional-pre-commit
+        stages: [commit-msg]
+        args: []

LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2024 The Regents of the University of Michigan, PEI Lab
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

NOTICES

@@ -0,0 +1 @@
+Copyright 2024 The Regents of the University of Michigan, PEI Lab

README.md

@@ -0,0 +1,15 @@
+# [GeoMCU](https://github.com/NohPei/GeoMCU) Firmware
+
+Arduino® firmware for running [GeoMCU](https://github.com/NohPei/GeoMCU) receiver boards.
+
+In-depth documentation is included with the [GeoMCU Documentation](https://geomcu.readthedocs.io)
+
+## Building
+
+This project is set up to be compiled and flashed using [PlatformIO](https://platformio.org/), whether through the IDE or the core CLI.
+
+Building with the [Arduino IDE](https://www.arduino.cc/en/software) should be possible, but is unsupported.
+Doing so would require manually installing libraries and some modifications to link with the included `lib` folder.
+
+
+Copyright © 2024 The Regents of the University of Michigan, [PEI Lab](https://peizhang.engin.umich.edu/)

geoscope/geoscope.ino

@@ -1,7 +1,8 @@
 /*
-Name:		geoscope.ino
-Created:	6/13/2018 1:34:31 PM
-Author:	Sripong
+Name: geoscope.ino
+Original Created: 6/13/2018 1:34:31 PM
+Original Author: Sripong Ariyadech (liurln)
+Updated: 02 Oct 2024
  */
 
 // the setup function runs once when you press reset or power the board