style: add .gitattributes file (#13086)
style: add .gitattributes file (#13086)

On windows unless otherwise specified when cloning the repo the line ending will be CRLF which will cause some tests large specs to fail
hansl/angular-cli,catull/angular-cli,Brocco/angular-cli,ocombe/angular-cli,filipesilva/angular-cli,Brocco/angular-cli,geofffilippi/angular-cli,Brocco/angular-cli,DevIntent/angular-cli,DevIntent/angular-cli,hansl/angular-cli,angular/angular-cli,filipesilva/angular-cli,manekinekko/angular-cli,angular/angular-cli,filipesilva/angular-cli,geofffilippi/angular-cli,clydin/angular-cli,manekinekko/angular-cli,DevIntent/angular-cli,geofffilippi/angular-cli,beeman/angular-cli,ocombe/angular-cli,filipesilva/angular-cli,hansl/angular-cli,angular/angular-cli,catull/angular-cli,ocombe/angular-cli,geofffilippi/angular-cli,Brocco/angular-cli,hansl/angular-cli,clydin/angular-cli,manekinekko/angular-cli,ocombe/angular-cli,DevIntent/angular-cli,clydin/angular-cli,ocombe/angular-cli,clydin/angular-cli,catull/angular-cli,DevIntent/angular-cli,beeman/angular-cli,angular/angular-cli,beeman/angular-cli,catull/angular-cli,beeman/angular-cli,Brocco/angular-cli