Replace HTML/JS files with python script for converting PEM to C string

[moninom1]

Description

Config tools are referencing jQuery versions older than 3.5.0 which is known to introduce Cross-Site Scripting and Prototype Pollution vulnerabilities in the application. Hence it is not recommended to be used.

This PR replaces the existing HTML tool (that configures PEM credentials as C formatted strings) with a python script.

usage: demo_config_generator.py [-h] -p PRIV_KEY_FILE -c CERT_FILE -r ROOT_CA_FILE -t THING_NAME -e ENDPOINT

Generate the demo_config.h file.

optional arguments:
  -h, --help            show this help message and exit
  -p PRIV_KEY_FILE, --priv-key-file PRIV_KEY_FILE
                        The path (relative or absolute) to Device Private Key file.
  -c CERT_FILE, --cert-file CERT_FILE
                        The path (relative or absolute) to Device Certificate File.
  -r ROOT_CA_FILE, --root-ca-file ROOT_CA_FILE
                        The path (relative or absolute) to the Server Root CA file.
  -t THING_NAME, --thing-name THING_NAME
                        The AWS IoT thing name.
  -e ENDPOINT, --endpoint ENDPOINT
                        The AWS IoT end point.

Sample Output :

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Replace C:\workplace\coreMQTT-Agent-Demos\source\configuration-files\demo_config.h with C:\workplace\coreMQTT-Agent-Demos\lib\AWS\tools\aws_config_offline\demo_config.h.
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