Expand the dat file ingestor to handle more formats (#84)

* MAME DAT's can now be imported, beginning of DB updates

* Fixed various database bugs that occur during upgrade from earlier versions

* Removed collation and MySQL specific options from database scripts

gaseous-tools/Database/MySQL/gaseous-1002.sql

@@ -0,0 +1,11 @@
+ALTER TABLE `Signatures_Roms`
+DROP INDEX `flags_Idx`;
+
+ALTER TABLE `Signatures_Roms` 
+ADD COLUMN `Attributes` JSON NULL AFTER `Flags`,
+ADD COLUMN `IngestorVersion` INT NULL DEFAULT 1;
+
+ALTER TABLE `Games_Roms` 
+ADD COLUMN `Attributes` JSON NULL AFTER `Flags`,
+ADD COLUMN `MetadataGameName` VARCHAR(255) NULL AFTER `MetadataSource`,
+ADD COLUMN `MetadataVersion` INT NULL DEFAULT 1;