1) Fix build issue in mbedtls
2) skip the public headers check in IDF
3)Update Kconfig Macros
4)Remove deprecated config options
5) Update the sha API according to new nomenclature
6) Update mbedtls_rsa_init usage
7) Include mbedtls/build_info.h instead of mbedtls/config.h
8) Dont include check_config.h
9) Add additional error message in esp_blufi_api.h
Adds the ESP certificate bundle feature that enables users to bundle a
root certificate bundle together with their application.
Default bundle includes all Mozilla root certificates
Closes IDF-296
esp_netif_init() returns standard esp_err_t error code (unlike tcpip_adapter init), so shall be checked for the return value
Also to make the initialization code more consistent.
