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.sh

@@ -0,0 +1,24 @@
+#!/bin/bash
+
+# This script will use git (must be in $PATH) and arm-none-eabi tools in combination with GNU Make
+# to both fetch and compile all variants of micro-ecc for the nRF5 families
+
+if ! [ -x "$(command -v git)" ]; then
+    echo 'git is not installed. Please install and append to PATH.' >&2
+    exit
+fi
+
+if [ ! -f micro-ecc/uECC.c ]; then
+    echo "micro-ecc not found! Let's pull it from HEAD."
+    git clone https://github.com/kmackay/micro-ecc.git
+fi
+
+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