test/gatt_client: extend mock

hci: remove bool from hci_reserve_packet_buffer and similiar higher layer functions

test: fix build

test: use bool for gap_reconnect_security_setup_active

test: use GAP_SUBEVENT_LE_CONNECTION_COMPLETE

test: use pkg-config for cpputest build flags

tset/gatt_client: enable btstack_crypto

test/gatt_client: avoid out-of-range read in test

test/gatt_client: setup le connection

test/gatt_client: check con_handle of hci_connection

test/gatt_client: fix warning

test: only compile CppUTest files with c++ compiler

test: update return types for some mock functions

test; fix build

btstack_defines: compact event codes, decrease SM_EVENT_* and GAP_EVENT_*

test/gatt_client: update mocking code

test/gatt_client: fix build

test/gatt_client: avoid invalid memory access in mock implementation

test/gatt_client: add ancs_client to coverage

fix built

fix compilation

test: fix compile warnings and gatt_client test

sm: sm_cmac_start -> sm_cmac_signed_write

test/gatt_client: fix compile

test/gatt_client: fix compile