Align includes to reorganized KDK directory structure.
Refactor knx_timer names.
Create 'config.h'.
Move 'TMR_NUM_TIMERS' to config.h.
[knx_timer] Rename KnxTmr_SystemTimeHandler to KnxTmr_SystemTickHandler.
[knx_timer] Add TMR_TICK_RESOLUTION parameter.
[knx_timer] Add TMR_TIMER_USER0.
[knx_timer] Replace DISABLE_ALL_INTERRUPTS/ENABLE_ALL_INTERRUPTS with TMR_LOCK/TMR_UNLOCK.
[knx_sched] Rename KnxUser_App to KnxUser_Main, add KnxUser_Init and KnxUser_Save.
[knx_sched] Move function prototypes to header file.
[knx_timer] Fix bug in second handler.
[knx_tlc] Only check timers if running.
[knx_timer]: Leave timer state expired 'forever'.
Replace 'ADDR_T' with 'Knx_AddressType'.
[StateMachineKNX.h] Add missing enum tag.