appveyor: improve readability
src: add class method 'LinSpaced()' for Vector and RowVector
test: add class method 'LinSpaced()' testings for Vector and RowVector
lint: add some files for linting files
readme: add class method 'LinSpaced()' api for Vector and RowVector
test: update some testings
src: add instance method 'setLinSpaced()' for Vector and RowVector
test: add instance method 'setLinSpaced()' testings for Vector and RowVector
lint: add some files for linting pass
readme: add instance method 'setLinSpaced()' api

update some api examples