Bug fix : linear vs exponential curve for the dimming

Fix bug :

• VMB8DC-20 uses a linear system for the dimming.
• VMB4LEDPWM-20, VMBDALI, VMBDALI-20 use an exponential curve system for the dimming.

Bug Fix

Fix bug :

• Remove ClockAlarm channel group on modules VMB4LEDPWM-20 and VMB8DC-20
• Use exponential curve values for brightness on modules VMBDALI, VMBDALI-20, VMB4LEDPWM-20, VMB8DC-20

Bug Fix

Fix bug :

• Remove channels color, feedback and input on modules VMB4PWMLED-20 and VMB8DC-20.

Add new modules & Bug fix

New functionality :

• Add modules : VMBPIRO-10, VMBPIR-20, VMB8IN-20

Fix bug :

• Correct typo in thing type for module VMB6PB-20.
• Add CH8 properties on VMB7IN module.
• Add fade-mode channel on VMB4LEDPWM-20 and VMB8DC-20 modules.
• Update readme.
• Channels name retrieved from modules not set correctly to the right channel.
• Remove property 'Refresh Interval' from modules VMBPIRC, VMBPIRM.
• Remove sub-address property for modules VMBPIRO and VMBPIRO-10.

Add new modules

Add modules VMB4LEDPWM-20 and VMB8DC-20.

Things type vmb4ledpwm-20 has 4 trigger channels input#CH1 ... input#CH4.
It has 4 channels to steer the button LED feedback feedback#CH1 ... feedback#CH4.
hsbColor command type is supported on channels color#CH1 ... color#CH4. This is to set the color on the channels.
Percent command type is supported on channels brightness#CH1 ... brightness#CH4. This is to set the brightness on the channels.
Percent command type is supported on channels white#CH1 ... white#CH4. This is to set the white on the channels.
Values 1 to 15 are supported on channels scene#CH1 ... scene#CH4. This is to set the scene on the channels.
It has a number of channels to set the module's alarms: clockAlarm#clockAlarm1Enabled, clockAlarm#clockAlarm1WakeupHour, clockAlarm#clockAlarm1WakeupMinute, clockAlarm#clockAlarm1BedtimeHour, clockAlarm#clockAlarm1BedtimeMinute, clockAlarm#clockAlarm2Enabled, clockAlarm#clockAlarm2WakeupHour, clockAlarm#clockAlarm2WakeupMinute, clockAlarm#clockAlarm2BedtimeHour and clockAlarm#clockAlarm2BedtimeMinute.

Things type vmb8dc-20 has 8 trigger channels input#CH1 ... input#CH8.
It has 8 channels to steer the button LED feedback feedback#CH1 ... feedback#CH8.
hsbColor command type is supported on channels color#CH1 ... color#CH8. This is to set the color on the channels.
Percent command type is supported on channels brightness#CH1 ... brightness#CH8. This is to set the brightness on the channels.
Percent command type is supported on channels white#CH1 ... white#CH8. This is to set the white on the channels.
Values 1 to 15 are supported on channels scene#CH1 ... scene#CH8. This is to set the scene on the channels.
It has a number of channels to set the module's alarms: clockAlarm#clockAlarm1Enabled, clockAlarm#clockAlarm1WakeupHour, clockAlarm#clockAlarm1WakeupMinute, clockAlarm#clockAlarm1BedtimeHour, clockAlarm#clockAlarm1BedtimeMinute, clockAlarm#clockAlarm2Enabled, clockAlarm#clockAlarm2WakeupHour, clockAlarm#clockAlarm2WakeupMinute, clockAlarm#clockAlarm2BedtimeHour and clockAlarm#clockAlarm2BedtimeMinute.

New functionnality & Bug fix

New functionality :

Add output channel for modules : VMBEL1, VMBEL2, VMBEL4, VMBELO, VMBELPIR. (fixes openhab#14179)
Add module VMBDALI. (fixes openhab#14654)
Add modules : VMB4RYLD-10, VMB4RYNO-10, VMB2BLE-10, VMB6PB-20, VMBEL1-20, VMBEL2-20, VMBEL4-20, VMBELO-20, VMBGP1-20, VMBGP2-20, VMBGP4-20, VMBGPO-20, VMBDALI-20, VMBEL4PIR-20, VMBGP4PIR-20
Fix bug :

No access to sub-address modules when adding manually the modules : VMBELO,VMBGPO, VMBGPOD, VMBGPOD-2 (fixes openhab#12702)
Thermostat event wrongly fired when using push button on sub-address for modules VMBELO, VMBGPO, VMBGPOD, VMBGPOD_2.
Wrong typeId for bridge alarms management.
Trigger all the channels present in a packet. (bug reported here)