Initial commit: MT firmware project

- BLE peripheral applications
- dr_piezo and bladder_patch projects

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

external/micro-ecc/build_all.bat

@@ -0,0 +1,24 @@
+@ECHO OFF
+
+:: This script will use git (must be in %PATH%) and arm-none-eabi tools in combination with GNU Make
+:: to both fetch and compile all variants of micro-ecc for the nRF5 families
+
+WHERE >nul 2>nul git
+IF %ERRORLEVEL% NEQ 0 (
+    ECHO "git is not installed. Please install and append to PATH."
+)
+
+IF NOT EXIST micro-ecc/uECC.c (
+    ECHO "micro-ecc not found! Let's pull it from HEAD."
+    git clone https://github.com/kmackay/micro-ecc.git
+)
+
+make -C nrf51_armgcc/armgcc
+make -C nrf51_iar/armgcc
+make -C nrf51_keil/armgcc
+make -C nrf52hf_armgcc/armgcc
+make -C nrf52hf_iar/armgcc
+make -C nrf52hf_keil/armgcc
+make -C nrf52nf_armgcc/armgcc
+make -C nrf52nf_iar/armgcc
+make -C nrf52nf_keil/armgcc