IRsmallDecoder v1.2.0

New features

• Added the dataAvailable() overload method
• Added methods to enable/disable the decoder

Notable code changes

• Fixed the possibility of needlessly dismissed codes (issue #5)
• Improved the NEC/NECx and SIRC12/15 decoders (small improvement)
• Formatted the code in a more normalized way

Notable documentation changes

• Corrected and added code comments
• Corrected and updated the documentation
• Added an example for the enable/disable methods
• Improved some of the examples