feat: initial bluetooth support (#9)

* Enable Bluetooth LE radio support
* Build our own bccmd which we need to setup/enable this BT chipset sadly
* Use our own tool we build to interface with the ubnt eeprom, so we can not rely on their custom kernel module
* Also fix HDDs not spinning down on shutdown, doing something similar to how unifi does it but a tad more generic.

scripts/docker/build_packages.sh

@@ -0,0 +1,55 @@
+#!/bin/bash
+set -e
+
+scripts_path="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && cd .. && pwd )"
+. ${scripts_path}/vars.sh
+
+# Exports baby
+export PATH=${build_path}/toolchain/${toolchain_bin_path}:${PATH}
+export GCC_COLORS=auto
+export CROSS_COMPILE=${toolchain_cross_compile}
+export ARCH=arm64
+
+# Make our temp builddir for bluez so we can make bccmd
+bluez_builddir=$(mktemp -d)
+tar -xzf ${root_path}/downloads/${bluez_filename} -C ${bluez_builddir}
+
+# Start with Bluez
+cd ${bluez_builddir}/${bluez_repopath}
+
+# If we have patches, apply them
+if [[ -d ${root_path}/patches/bluez/ ]]; then
+    for file in ${root_path}/patches/bluez/*.patch; do
+        echo "Applying bluez patch ${file}"
+        patch -p1 < ${file}
+    done
+fi
+
+# Build bccmd from bluez
+./bootstrap
+./configure --disable-systemd \
+    --enable-deprecated \
+    --disable-library \
+    --disable-cups \
+    --disable-datafiles \
+    --disable-manpages \
+    --disable-pie \
+    --disable-client \
+    --disable-obex \
+    --disable-udev \
+    --build=x86_64-linux-gnu \
+    --host=aarch64-none-linux-gnu \
+    --target=aarch64-none-linux-gnu
+make lib/bluetooth/hci.h lib/bluetooth/bluetooth.h lib/libbluetooth-internal.la tools/bccmd -j`getconf _NPROCESSORS_ONLN`
+
+# Save our binary
+mkdir -p ${build_path}/packages/bluez
+mv ./tools/bccmd  ${build_path}/packages/bluez/
+
+# Build ubnteeprom (our own tool)
+mkdir -p ${build_path}/packages/ubnteeprom
+env GOOS=linux GOARCH=arm64 go build -ldflags="-s -w" -o ${build_path}/packages/ubnteeprom/ubnteeprom ${root_path}/tools/ubnteeprom/main.go
+
+# Cleanup
+cd - > /dev/null
+rm -rf ${bluez_builddir}