IC:2021-03-30, Add cfe and osal PRs

nasa/osal#923 - Fix #831, Finish os-impl-bsd-socket.c coverage testing

nasa/cFE#1237 - Fix #1180, Removes impossible conditions
nasa/cFE#1240 - Fix #1002, Remove deprecated elements
nasa/cFE#1253 - Fix #1252, Squash potentially uninitialized variable warnings
nasa/cFE#1241 - Fix #1185, Squash possible uninitialized variable false alarms
nasa/cFE#1247 - Fix #1246, Typo in CFE_TBL_Validate AppName
nasa/cFE#1234 - Fix #1192, Initialize TotalMsgSize in CFE_SB_GetUserDataLength
nasa/cFE#1245 - Fix #1187, Increment CreatePipeErrorCounter for all create pipe errors
nasa/cFE#1236 - Fix #1186, Remove useless assignments/checks
nasa/cFE#1262 - Fix #1239, scrub include header guards
nasa/cFE#1256 - Fix #1194, check for NULL in SlotUsed helpers
nasa/cFE#1263 - Fix #1261, removed redundant checks for CFE_SUCCESS
nasa/cFE#1250 - Fix #1215, remove task registration calls
nasa/cFE#1242 - Fix #1223, shorten TestRunner function name
nasa/cFE#1242 - Fix #1264, Convert functional test startup script example to use "simple" filenames
nasa/cFE#1229 - Fix #1164, use FS file name parser for commands
nasa/cFE#1257 - Fix #1155, clean up zero copy API
nasa/cFE#1254 - Fix #1181, global variable cleanup
nasa/cFE#1255 - Fix #1206, report PSP version in ES HK TLM