Setup tsconfig to enable global tsc watch (#4435)

Author: timotheeguerin

.gitattributes

@@ -1,41 +1,2 @@
-*.bmp binary
-*.dll binary
-*.gif binary
-*.jpg binary
-*.png binary
-*.snk binary
-*.exe binary
-*.wmv binary
-*.mp4 binary
-*.ismv binary
-*.isma binary
-
-*.ascx text
-*.cmd text
-*.config text
-*.cs text diff=csharp
-*.csproj text merge=union
-*.edmx text
-
-*.htm text
-*.html text
-
-*.json text eol=lf
-*.ts text eol=lf
-*.txt text eol=lf
-
-*.msbuild text
-*.nuspec text
-
-*.resx text
-*.ruleset text
-*.StyleCop text
-*.targets text
-*.txt text
-*.xml text
-
-*.sln text eol=crlf merge=union
-
-shrinkwrap.yaml              merge=binary
-npm-shrinkwrap.json          merge=binary
-yarn.lock                    merge=binary
+# Use unix line endings always, even on Windows
+*                            text=auto eol=lf

.gitignore

@@ -294,3 +294,5 @@ common/config/rush/shrinkwrap.yaml
 core/test/regression
 regression-tests/output
 
+# TS incremental build cache
+*.tsbuildinfo