Typo in WorkspaceInformationResponse in omnisharp-server.ts

[xen22]

There is a typo in WorkspaceInformationResponse:
https://github.com/OmniSharp/omnisharp-node-client/blob/master/lib/omnisharp-server.ts#L977

"MSBuild: Models.MsBuildWorkspaceInformation;" should be "MsBuild: Models.MsBuildWorkspaceInformation;"