Tell vscode eslint plugin not to activate on ts files
Tell vscode eslint plugin not to activate on ts files

- a recent update caused it to auto-activate on ts files, though we are still using the legacy tslint to hanadle those
- we will need a little bit more eslint configuration before getting it set up to work on our ts code, which we can probably do when we drop tslint

WorldBrain/WebMemex,WorldBrain/WebMemex