add initial protobuf and BLE functionality

.gitignore

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+*_pb2.py
+__pycache__

example.py

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+#!/usr/bin/env python3
+
+import asyncio
+from libikawa import *
+
+async def main():
+	async with Ikawa() as ikawa:
+		cmd = Cmd(cmd_type=BOOTLOADER_GET_VERSION)
+		resp = await ikawa.send_cmd(cmd)
+		print(resp)
+		cmd = Cmd(cmd_type=MACH_PROP_GET_TYPE)
+		resp = await ikawa.send_cmd(cmd)
+		print(resp)
+		cmd = Cmd(cmd_type=PROFILE_GET)
+		resp = await ikawa.send_cmd(cmd)
+		print(resp)
+
+		print("enumerating settings...")
+		settings=dict()
+		cmd = Cmd(cmd_type=SETTING_GET_LIST, setting_get_list=CmdSettingGetList(offset=0))
+		resp = await ikawa.send_cmd(cmd)
+		# print(resp)
+		for i in resp.resp_setting_get_list.number:
+			cmd = Cmd(cmd_type=SETTING_GET_INFO, setting_get_info=CmdSettingGetInfo(number=i))
+			resp = await ikawa.send_cmd(cmd)
+			# print(resp)
+			settings[resp.resp_setting_get_info.name] = i
+		print(f"settings={settings}\n")
+
+		cmd = Cmd(cmd_type=SETTING_GET, setting_get=CmdSettingGet(number=settings['ROASTER_ID']))
+		resp = await ikawa.send_cmd(cmd)
+		print(resp)
+
+		while True:
+			cmd = Cmd(cmd_type=MACH_STATUS_GET_ALL)
+			resp = await ikawa.send_cmd(cmd)
+			status = resp.resp_mach_status_get_all
+			print(f"{status.time}, {MachState.Name(status.state)}, {status.temp_above*0.1:.1f}, {status.temp_below*0.1:.1f}, {status.setpoint*0.1:.1f}, {status.heater}, {status.fan/255.0:.2f}, {(status.fan_measured/12.0)*60:.0f}")
+			await asyncio.sleep(0.1)
+
+try:
+	asyncio.run(main())
+except KeyboardInterrupt:
+	print("Received interrupt signal, bye")