Allow GLRendererQuirks to be overridden by user properties,
allowing to either force (inject) a quirk by a user property 
or to ignore a quirk by a user property.

This helps:
- debugging certain quirk behavior (See Bug 1383)
- allowing a user to customize the quirk setting

Proposal:
    /**
     * Allow overriding any quirk settings
     * via the two properties:
     * <ul>
     *   <li>jogl.quirks.force</li>
     *   <li>jogl.quirks.ignore</li>
     * </ul>
     * Both contain a list of capital sensitive quirk names separated by comma.
     * Example:
     * <pre>
     * java -Djogl.quirks.force=GL3CompatNonCompliant,NoFullFBOSupport -cp my_classpath some.main.Class
     * </pre>
     * <p>
     * Naturally, one quirk can only be listed in one override list.
     * Hence the two override sets force and ignore are unique.
     * </p>
     */
    public static enum Override {
        /**
         * No override.
         */
        NONE,
        /**
         * Enforce the quirk, i.e. allowing the code path to be injected w/o actual cause.
         */
        FORCE,
        /**
         * Ignore the quirk, i.e. don't set the quirk if otherwise caused.
         */
        IGNORE
    }