v1.38 revision(2020\11\16)
1.support new loader format

v1.39 revision(2020\12\04)
1.support to 1109 and 1126
2.fix pem key with non pem extension bug

v1.4 revision(2021\03\01)
1.merge ssl function into sl command

v1.41 revision(2021\03\04)
1.si command support to sign resc image
2.sf command support to sign firmware.img
3.sl command modify to sign loader without 472

v1.42 revision(2021\04\08)
1.sf command support to sign 356X firmware