Update to 2.1.1:

* Fixed missing apply() on TrackStateSP property by @atoy40 in #2130
* Update SnapCap driver to use common abort capability from DustCapInterface instead of doing it manually. by @jpaana in #2136
* Miscellaneous ScopeDome driver updates. by @jpaana in #2137
* FP2 motor status by @DeepSkyDad in #2139
* Migrate INDI Astrolink4 by @naheedsa in #2133
* Migrate Astromech focuser by @naheedsa in #2134
* Update ieaffocus.cpp by @joe13905179063 in #2141
* Fixed crash due not checking boundary values of the axis in telescope_simulator by @artyom-beilis in #2144
* Upgrade CheapoDC driver for new device firmware features by @hcomet in #2142
* Sim crash fix - looks like found root cause by @artyom-beilis in #2147
* Initial work for guider and focuser interface refactor 
* Fixed myFocuserPro2 Autofocus Issues in Ekos 
* Update Tracking code
* Add workaround for OnStepX failing connection
* Migrate telescope properties 
* Migrate Temperature Property
* Update light box and dust cap interfaces to new style
* drivers/dome: rigel_dome shutter parking 
* Joining FP1 and FP2 into single FP driver
* lx200zeq driver had incorrect pulse commands
* Fix Motion Control Mode 
* use MOTION_CONTROL_MODE _FOO enums 
* enable more Meade commands 
* Minor buffer boundary fixes
* Weather watcher dynamic labels
* PegasusAstro FalconV2 Driver
* Add Terrans PowerBoxPro V2 Driver
* Waveshare Modbus Relay Drive
* Universal Roll off roof driver
* ZWO AM5 Save home position in the mount
* Avoid using .getName() for new INDI properties 
* Migrate drivers to new properties
* Various fixes
* Update Pegasus Focuscube
* New driver for DIY dew controllaer cheapodc
* Weather interface refactor
* Driver for Wnaderer Box and Cover products
* Initial release of Alluno TCS2 driver
* Link against httplib if using system libraries 
* fix(actions): upgrade actions versions 
* Fix various typos throughout the codebase 
* Remove obsolete Avalon Legacy driver 
* TeenAstro pulse behaviour #1977 
* iOptron iEAF indi driver 
* Allow using system provided json library 
* Flip-flat: Allow handshake without ioctl on virtual serial connection 
* Fix version reporting on older Celestron NexStar mounts 
* PegasusAstro SaddlePowerBox
* Fix issue 1938
* Add one more check to ensure minimum count is met
* Update ioptronv3driver.cpp
* Handling tracking mode in the pegasus driver, and enable King mode
* Fixed 9 Stars Align
* On step work
* Added several missing commands
* Snapcap driver with network connections
* Fix bug in relative positioning of Lacerta MFOC
* Fix setFormat typos, add isEmpty method
* Use ZSTD compression for XISF images when available
* Preliminary support for Planewave
* Bug fix making both focusers visible
* focuser crash fixed+some properties added
* OnStep work
* Openastrotech work
* Simplify RTL-SDR driver for bug #558
* Update ioptronv3.cpp
* Fix leaks last blob on driver restart