feat: Flysky PL18 Support #8139

Job	Run time
Run tests (x9dp2019)	3m 16s
Run tests (tx16s)	7m 16s
Run tests (nv14)	6m 57s
Run tests (el18)	7m 34s
Run tests (pl18)	7m 40s
Run tests (t12)	3m 35s
Run tests (t16)	7m 0s
Run tests (t18)	7m 35s
Run tests (t8)	3m 25s
Run tests (tlite)	3m 10s
Run tests (t20)	3m 7s
Run tests (tx12)	3m 13s
Run tests (x10)	8m 39s
Run tests (x12s)	8m 13s
Run tests (x7)	4m 2s
Run tests (x9d)	3m 58s
Run tests (x9dp)	3m 27s
Run tests (x9e)	3m 21s
Run tests (x9lite)	3m 16s
Run tests (x9lites)	3m 9s
Run tests (xlite)	3m 46s
Run tests (xlites)	3m 17s
Run builds (nv14;el18)	7m 51s
Run builds (pl18)	5m 28s
Run builds (t12)	2m 5s
Run builds (t16;t18)	10m 18s
Run builds (t8;zorro;pocket;commando8)	6m 51s
Run builds (tlite;tpro;tprov2;lr3pro)	5m 9s
Run builds (t20)	2m 30s
Run builds (tx12;tx12mk2;boxer)	4m 6s
Run builds (tx16s)	4m 11s
Run builds (x10;x10-access)	9m 12s
Run builds (x12s)	5m 50s
Run builds (x7;x7-access)	3m 15s
Run builds (x9d;x9dp;x9dp2019)	4m 46s
Run builds (x9e;x9e-hall)	2m 55s
Run builds (x9lite;x9lites)	2m 50s
Run builds (xlite;xlites)	3m 7s
	3h 9m 20s

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