Logging overhaul!

This change brings about a few changes:
1) A new LogLevel called "User" that is used for non-verbose, non-error output
2) Only User and Error are output to console now, not all of them
3) All programs have log to file enabled by default and all flags for enabling logging have been removed
4) Some former Verbose statements have been converted over to User because of the shift in usage.

SabreHelper/Build.cs

@@ -114,7 +114,6 @@ Options:
 	-nr, --no-rename	Don't auto-rename games
 	-o, --old		Output DAT in CMP format instead of XML
   -i, --import		Start tool in import mode
-  -l, --log		Enable logging of program output
   -lso, --list-sources	List all sources (id <= name)
   -lsy, --list-systems	List all systems (id <= name)
   -m, --merge		Merge one or more DATs
@@ -168,7 +167,6 @@ Options:
   -c=, --cat=		Set the category of the DAT
   -v=, --version=	Set the version of the DAT
   -au=, --author=	Set the author of the DAT
-  -l, --log		Enable log to file
   -sd, --superdat	Enable SuperDAT creation");
 					break;
 				case "OfflineMerge":