Communication between server and COM object does not support PWM GI

[vbousquet]

The issue is clearly described here: vpinball/pinmame#267

The problem seems to be in the communication through Windows registry see:

• b2s-backglass/b2sbackglassserverexe/b2sbackglassserverexe/Server.vb

  Line 667 in d5b275e

  Dim gistringstate As Integer = CInt(gistrings(i, 1))

  => GI state is read as a single char

• b2s-backglass/b2sbackglassserver/b2sbackglassserver/Server.vb

  Line 1260 in d5b275e

  sb.Remove(gistringid, 1)

  => GI state is inserted as is, which can be more than one char when using PWM

The solution would be either to at least clamp the value to 9 or to go for a clean full support (more complicated though).

[JockeJarre]

Works!