fixing TW-35130, TW-32701
stop passing resolved value of repoPath to restore command
fix compilation
(fixing TW-32701, TW-35130)
- try to locate nuget.config in .nuget subfolder near solution file and all parent directories
- used workingDirectory (instead of solution file home directory) as parent path while resolving relative  repositoryPath
(fixing TW-32701, TW-35130) fixed multiple configs chaining
fixed tests
Merge branch 'repopath' into HEAD
Merge remote-tracking branch 'origin/v0.11' into v0.11