fixup meta: enable text only for selected extensions

.gitattributes

@@ -1,4 +1,35 @@
-* text=auto
+* -text
+./* text=auto
+*.bat text
+*.c text
+*.cc text
+*.css text
+*.d text
+*.def text
+*.gyp text
+*.gypi text
+*.h text
+*.html text
+*.inc text
+*.js text
+*.json text
+*.man text
+*.manifest text
+*.md text
+*.out text
+*.pl text
+*.py text
+*.rb text
+*.rc text
+*.sln text
+*.status text
+*.txt text
+*.vcxproj text
+*.wixproj text
+*.wxl text
+*.wxs text
+*.yml text
+tools/msvs/npm/npmrc text
 deps/v8/test/mjsunit/regress/regress-2825.js -text
 
 test/fixtures/* -text