Allow user to select specific ESP_TARGET while setting up ESD_IDF.
Only necessary tools for given target will be downloaded and installed.
Closes https://github.com/espressif/esp-idf/issues/5113
Current method assumes that you are in the esp-idf directory when executing install. This method will get the correct path regardless of where you execute from.
Merges https://github.com/espressif/esp-idf/pull/6718