* Initial changes to have serialization generate its own .exe
* Removed additional project from sln file
* remove all references to removed temporary project
* Moved shared contracts into own dll and fixed imports. Addressed PR comments
* Undid having a separate contracts project since that'll be a task for later on. Moved dbcellvalue and saveresultsrequest to Hosting, where they will be imported and shared by the service layer and serialization projects
* Switched backslashes in project reference in csproj file to forward slashes for consistency
* Moved necessary contracts back to service layer. Refactored CommandOptions to reduce code duplication. Addressed miscellaneous PR suggestions
* Accidentally left these files out of previous commit
* Initialized loggers for serialization and credentials with the logging directory provided by the cmd line arg, if there is one
* Changed default log directory paths for serialization and credentials. Removed unnecessary cast and added a copyright
* Changed name of generated executable for serialization service
* removed unnecessary object cast
* removing unnecessary imports and addressing other PR comments
* Initial credential service files
* Clean-up hostloader
* Update build scripts to build credentials archive
* Move hosting files to new assembly
* Add credentials files to MS.SqlTools.Credentials
* Remove duplicate files
* Update namespace in program.cs
* Fix test build breaks
* Update extensions visibility.
* Remove unused resource strings
* Add xproj files to SLN for appveyor builds
* Fix appveyor build break in test project
* Fix extensibility tests
* Fix various typos in latest iteration
* Add settings for Integration build
* Fix codecoverage.bat to use full pdb for new projects
* Fix bug when packing in folder with native images
* Fix typos in xproj
* Reset XLF to fix build.cmd
