Add Vue parsing to CLI & refactor extract function

In order to parse for phrases the Vue SFC we needed to create a new
extract function. This means that cli will also be parsing all the
`*.vue` files that will find.

`vue-template-compiler` was used to do this so we can extract the
different types of content from the Vue template `script` and
`template`.

For the `template` part we use `compile` to get the AST and we traverse
with a custom function and for the `script` we just send to babel.

During this implementation it seemed that a lot of code could be
extracted from `extract.js` and so a new `parsers` folder was created
with `angularHTML`, `vue` and `babel` files with all the functionality
that can be reused accross parsers if needed.

packages/cli/README.md

@@ -82,7 +82,7 @@ USAGE
   $ txjs-cli push [PATTERN]
 
 ARGUMENTS
-  PATTERN  [default: **/*.{js,jsx,ts,tsx}] file pattern to scan for strings
+  PATTERN  [default: **/*.{js,jsx,ts,tsx,vue}] file pattern to scan for strings
 
 OPTIONS
   -v, --verbose                          verbose output
@@ -98,7 +98,7 @@ OPTIONS
   --without-tags-only=without-tags-only  push strings without specific tags
 
 DESCRIPTION
-  Parse .js, .ts, .jsx, .tsx and .html files and detect phrases marked for
+  Parse .js, .ts, .jsx, .tsx, .html and .vue files and detect phrases marked for
   translation by Transifex Native toolkit for Javascript and
   upload them to Transifex for translation.
 

packages/cli/package.json

@@ -34,7 +34,8 @@
     "colors": "^1.4.0",
     "glob": "^7.1.6",
     "lodash": "^4.17.21",
-    "shelljs": "^0.8.4"
+    "shelljs": "^0.8.4",
+    "vue-template-compiler": "^2.6.14"
   },
   "devDependencies": {
     "@oclif/dev-cli": "^1.26.0",