ble/url-shasums
A template to override the BLE config.txt with.
IF the specified URL contains a downloadable set of shasum values, then the file will be downloaded and the subsequent referenced files will be tested against the SHA sums found in it.
If the Param has a specified value, the SHA sum file must be accessible and valid, along with the SHA hashes matching. Otherwise, exit with a error code will occur.
If this Param is empty, no SHA hash sum checking will be performed.