airframe-codec: Scala 3 support

[xerial]

• Split code for Scala 2 and Scala 3
• Add Scala3 macros
• Only airframe-codec: Finding Surfaces from classes in AnyCodec (Scala 3) #1641 is not supported. Need to be addressed later.

[codecov]

Codecov Report

Merging #1640 (41ed8d5) into master (8bf5d14) will decrease coverage by 0.01%.
The diff coverage is 94.11%.

@@            Coverage Diff             @@
##           master    #1640      +/-   ##
==========================================
- Coverage   83.10%   83.08%   -0.02%     
==========================================
  Files         311      312       +1     
  Lines       12503    12503              
  Branches      771      792      +21     
==========================================
- Hits        10390    10388       -2     
- Misses       2113     2115       +2     

Impacted Files	Coverage Δ
...rc/main/scala/wvlet/airframe/codec/JDBCCodec.scala	83.00% <ø> (ø)
...rc/main/scala/wvlet/airframe/codec/JSONCodec.scala	90.00% <0.00%> (ø)
...c/main/scala/wvlet/airframe/codec/UnionCodec.scala	66.66% <ø> (ø)
...main/scala-2/wvlet/airrame/codec/ScalaCompat.scala	100.00% <100.00%> (ø)
...main/scala/wvlet/airframe/codec/MessageCodec.scala	83.87% <100.00%> (-0.51%)	⬇️
...ala/wvlet/airframe/codec/MessageCodecFactory.scala	92.59% <100.00%> (-1.16%)	⬇️
...rx/src/main/scala/wvlet/airframe/rx/RxRunner.scala	90.78% <0.00%> (-0.88%)	⬇️

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