LoRa device type + SX1262 kernel driver (first checkpoint) (#565)

Adds sub-GHz radio support to Tactility as a first-class kernel device type, plus a
driver for the Semtech SX1262. Continues the radio work discussed in #342, brought up to
the current kernel driver model (rather than the deprecated tt::hal layer the earlier
prototype targeted).

Drivers/sx126x-module/CMakeLists.txt

@@ -0,0 +1,12 @@
+cmake_minimum_required(VERSION 3.20)
+
+include("${CMAKE_CURRENT_LIST_DIR}/../../Buildscripts/module.cmake")
+
+file(GLOB_RECURSE SOURCE_FILES "source/*.c*" "private/*.c*")
+
+tactility_add_module(sx126x-module
+    SRCS ${SOURCE_FILES}
+    INCLUDE_DIRS include/
+    PRIV_INCLUDE_DIRS private/
+    REQUIRES TactilityKernel platform-esp32 radiolib driver esp_timer
+)