v2.5.2 release

[crankyoldgit]

[Bug Fixes]

• Add missing send() method to IRPanasonicAC class. ([BUG] Add missing send() method to IRPanasonicAC class. #545)
• Add missing sendWhirlpoolAC() to IRMQTTServer.ino (Add missing sendWhirlpoolAC() to IRMQTTServer.ino #558)

[Features]

• Add IR receiving support to IRMQTTServer. (Add IR receiving support to IRMQTTServer. #543)
• Pioneer support (Pioneer send support #547)
• Add support for a second LG protocol variant. (Add support for a second LG protocol variant. #552)
• Support for short Panasonic A/C messages. (Support for short Panasonic A/C messages. #553)
• Add support for Panasonic CKP series A/Cs. (Add support for Panasonic CKP series A/Cs. #554)
• Experimental timer/clock support for Panasonic A/Cs. (Experimental timer/clock support for Panasonic A/Cs. #546)
• Add Made With Magic (MWM) support (Add MWM support #557)

[Misc]

• Grammar and typo fixes (Updated Readme #541, fix a few typos in docstrings #549)
• Increase Panasonic A/C message tolerances. (Increase Panasonic A/C message tolerances. #542)
• Added command mode2_decode in tools/ (Add MWM support #557)
• General code style cleanup (General style cleanup #560)