license: update text

docs: use @return instead of @returns

Remove stdio.h include from btstack_debug.h, add to individual files

MISRAC2012-Rule-8.3_b: match function declaration and definition

MISRAC2012-Rule-14.4_c: compare against 0 or NULL

test/linked_list: add tests

remove <stdio.h>, <stdlib.h> and printf from most core files

MISRAC2012-Rule-14.4_b: compare iterator pointer against NULL in for loops

linked list/run loop: return true if item/data source/timer was removed

linked_list: return if item was added for btstack_linked_list_add[_tail]

linked_list: use bool return type

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

linked_list: fix warning if iterator_remove fails

linked_list: warn if iterator_remove fails

tool: add update_filename.py that adds __BTSTACK_FILE__ to every .c file for use with debug output instead of __FILE__

linked_list: add pop and get_first_item operations

linked_list: add tests for linked_list_count and fix off-by one

btstack_linked_list: remove user data field

prefix data_source_t and timer_source_t with btstack

forgot to add files in earlier commit

prefixed all linked list types and functions with btstack_

rename bk_linked_list_t to btstack_linked_list_t

rename bk_linked_list to btstack_linked_list