daemon: fix example compile
use hci_con_handle_t more
daemon: move examples from example/daemon to platform/daemon/example. fix mtk compile
fix compile of l2cap/rfcomm-name examples
platform/posix: drop src folder
platform/daemon: drop src folder
run_loop: pass in run_loop_X_get_instance() to run_loop_init(). Various other fixes
fix paths after source reorg