Add support for fixed version of project clones into the template

[Ulrond]

Add support for checking the latest version and warning if not on it to be added to the clone script

https://github.com/rdkcentral/hal-doxygen/blob/develop/template/docs/generate_docs.sh

Something akin to the same one for ut-core

# Clone the Unit Test Requirements
TEST_REPO=git@github.com:rdkcentral/ut-core.git

# This function checks if we're not sitting on the latest revision.
function check_next_revision()
{
    pushd ./ut-core 2&>/dev/null
    # Set default UT_PROJECT_VERSION to next revision
    if [ -v ${UT_PROJECT_VERSION} ]; then
        UT_PROJECT_VERSION=$(git tag | grep ${UT_PROJECT_MAJOR_VERSION} | sort -r | head -n1)
        UT_NEXT_VERSION=$(git tag | sort -r | head -n1)
        echo -e ${YELLOW}ut-core version selected:[${UT_PROJECT_VERSION}]${NC}
        if [ "${UT_NEXT_VERSION}" != "${UT_PROJECT_VERSION}" ]; then
            echo -e ${RED}--- New Version of ut-core released [${UT_NEXT_VERSION}] consider upgrading ---${NC}
        fi
    fi
    popd 2&>/dev/null
}

This sort of thing needs to be removed

# Set default UT_PROJECT_VERSION to master
if [ -z "${UT_PROJECT_VERSION}" ]; then
    UT_PROJECT_VERSION=master
fi