lnbits/server.py: init

This adds a wrapper around uvicorn using Python. This is so the
entrypoint lnbits.server can be called on the command line, and passed
arguments like port and host. This makes lnbits feel more like a real
CLI application, and lends well to running as a service in systemd

lnbits/server.py

@@ -0,0 +1,17 @@
+import uvicorn
+
+import click
+
+@click.command()
+@click.option('--port', default="5000", help='Port to run LNBits on')
+@click.option('--host', default="127.0.0.1", help='Host to run LNBits on')
+def main(port, host):
+    """Launched with `poetry run lnbits` at root level"""
+    uvicorn.run("lnbits.__main__:app", port=port, host=host)
+
+if __name__ == '__main__':
+    main()
+
+#def main():
+#    """Launched with `poetry run start` at root level"""
+#    uvicorn.run("lnbits.__main__:app")