function setProjectDetail(projectName, numFiles, cacheSize) {
        var projectNameHash = StringUtils.hashCode(projectName),
            FIFLog = getHealthDataLog("ProjectDetails");
        if (!FIFLog) {
            FIFLog = {};
        }
        FIFLog["prj" + projectNameHash] = {
            numFiles : numFiles,
            cacheSize : cacheSize
        };
        setHealthDataLog("ProjectDetails", FIFLog);
    }
Sets the project details(a probably unique prjID, number of files in the project and the node cache size) in the health log
The name of the project is never saved into the health data log, only the hash(name) is for privacy requirements.
@param {string} projectName The name of the project
@param {number} numFiles    The number of file in the project
@param {number} cacheSize   The node file cache memory consumed by the project