Migrate to IAR v7.30
Add Nucleo_411RE platform

1. RF driver can now be build with application together if
MICO_FLASH_FOR_DRIVER is not defined
2. Move platform related defines from MicoDefault.h to
platform_common_config.h
3. Add Nucleo_411RE docs
4. Fix a bug in HTTPUtils.h that no content-length is found in http
header but includes extra data in http package
5. Added Nucleo_411RE platform
6. Move platform related controls from library to platform (RF led, sys
led, boot sel and mfg sel)
7. Update to IAR workbench for ARM 7.30
8. remove MicoRtcInitialize and host_platform_init in boot loader