[NNAPI EP] add uint8 support for Transpose/Concat/Maxpool, add support of QLinearSigmoid (#6534)
* Init change
* Add QlinearSigmoid support
* Update tests
* Add resize int8 support
* Add version check for resize linear uint8 and add scale/zero point check for concat uint8
* Address CR comments
* minor fix and add test for uint8 handling
* Address CR comments
* Fixed an existing bug
* Fix the new UT break, due to different rounding of 0.5 in device and emulator