example/le_streamer_client: fix index of phy_names (#630)

example: fix command line address parsing

example: remove nested switch cases

example: use GAP_SUBEVENT_LE_CONNECTION_COMPLETE instead of HCI_SUBEVENT_LE_CONNECTION_COMPLETE

example/le_streamer_client: fix return type

example: fix advertisement_contains_name in le client examples

example/le_streamer_client: scan and connect on coded phy

example/le_streamer_client: scan and connect on coded phy

example/le_streamer_client: use gatt_client_request_to_write_without_response

example: gatt_streamer_server and le_streamer_client report DLE and PHY changes

examples: unify status stdout format

example: fix warnings

license: update text

examples: use `btstack_event.h` getters instead of direct array access, use enum to compare status codes

le_streamer_client, le_data_channel_client: fix adv name matching

docu: copy editing examples titles

docu: updated titles of examples

gat_client: rename status to att_status in GATT_EVENT_QUERY_COMPLETE event, add and use ATT_ERROR_SUCCESS instead of 0 status code

Use BTSTACK_FILE__ without __ prefix (MISRAC2012-Rule-21.1)

Revert "l2cap ertm: allow SDU of szie MPS in first packet that contains L2CAP SDU Length"

This reverts commit f6fb536452573216b8c12692b87b78ef0221df9e.

l2cap ertm: allow SDU of szie MPS in first packet that contains L2CAP SDU Length

example: register for events after setting up the stack, register for hci events after sm_init()

example/le_streamer_client: init sm before gatt client

don't use empty initializer [-Wgnu-empty-initializer]

example/le_streamer_client: stop on enable notify error