'initial' commit
+ ConvertHelper for converting times between seconds and ticks
+ FileHelper for retrieving directory contents and creating archive files

* BackupTickHandler now handles creating backups after the specified interval
* added several values in ConfigHandler
* YABM main class now registers BackupTickHandler after server started
- removed debugging interval value in BackupTickHandler
* replaced backupInterval with backupTimes
* backups now get done at certain times instead of intervals
- removed old interval entries
Merge branch 'dev'
Merge branch 'master' of https://github.com/szernex/YetAnotherBackupMod