EcmaUrlParser throws exception when type string is complexed

[TianqiZhang]

Below code will cause monodoc.Ecma.yyParser.yyException: irrecoverable syntax error:

EcmaUrlParser EcmaParser = new EcmaUrlParser();
EcmaDesc desc = EcmaParser.Parse("T:System.Threading.Tasks.Task<System.Collections.Generic.IReadOnlyList<Microsoft.Bot.Builder.Scorables.Internals.FoldScorable<Item,Score>.State>>");
            

[joelmartinez]

This issue is gated by the resolution to #20