* Adding SRGen to build scripts
Adding support for sr.strings files. sr.strings files can be converted
into .resx and designer cs files by running the SRGen Cake target
Adding a new target to Cake script to run SRGen. SRGen is pulled down as a
nuget package for Cake and executes from the .tools folder.
Adding Cake temp environment to the gitignore
Adding the cake scripts to the sqltoolsservice solution file
* Fixes from pull request comments
* Fix as per @llali
* Actual changes as per @llali
* removing platform type from netcore dependency