[ESP32]import esp-idf components

import esp-idf components:

1. import the components is easy: git clone , mkdir <proj_dir>/components, and copy into <proj_dir>/components

   The git repos and commands that I used for this testing:

   git clone https://github.com/natanaeljr/esp32-I2Cbus.git I2Cbus
   git clone https://github.com/natanaeljr/esp32-MPU-driver.git MPUdriver
   mkdir -p <proj_path>/components
   mv I2Cbus <proj_path>/components
   mv MPUdriver <proj_path>/components
   

   for more, refer: https://github.com/natanaeljr/esp32-MPU-driver

2. Do sdkconfig for the right chip and protocal for the imported component

3. if the hello_world_main.c is renamed, rename it in <proj_dir>/main/CMakeLists.txt