* improved regex support * better parsing of options * better handling of options * spacing change * typo * rename the x-modifier- extension * trivial change * added to the sample
* rename csharp-netcore to csharp * rename file * renmae modules/openapi-generator/src/main/resources/csharp-netcore * update samples * mv dir * update samples * rename csharp-netcore to csharp in appveyor.yml * update doc