Readd CommonData.csproj. Looks like it accidentally got removed.
Readd CommonData.csproj. Looks like it accidentally got removed.

Fixes #76.

jagt/fullserializer,Ksubaka/fullserializer,Ksubaka/fullserializer,jacobdufault/fullserializer,jacobdufault/fullserializer,jacobdufault/fullserializer,Ksubaka/fullserializer,jagt/fullserializer,jagt/fullserializer