[ADD] owl-vision: vscode extension initial commit

Owl Vision is a vscode extension that improves owl developpement by adding
syntax highlights in templates and commands to easly navigate between
components and templates.

It also adds a Component snippet.

Commands:

* `Owl Vision: Find Template`:
    - If the cursor is on a template name, finds the corresponding template.
    - If the cursor is on a component, finds the template of the selected component.
* `Owl Vision: Find Component`: Finds the selected component definition.
* `Owl Vision: Switch`: Finds the corresponding template or component
    depending on the current file.
* `Owl Vision: Switch Besides`: Finds the corresponding template or component
    depending on the current file and opens it besides.

Settings:

* `owl-vision.js.include`: Javascript files to include in search.
* `owl-vision.js.exclude`: Javascript files to exclude in search.
* `owl-vision.xml.include`: XML files to include in search.
* `owl-vision.xml.exclude`: XML files to exclude in search.

tools/owl-vision/syntaxes/owl.template.inline.json

@@ -0,0 +1,37 @@
+{
+    "injectionSelector": "L:source.js -comment",
+    "scopeName": "owl.template.inline",
+    "patterns": [
+        {
+            "include": "#xml-tag"
+        }
+    ],
+    "repository": {
+        "xml-tag": {
+            "begin": "\\s+(xml)(`)",
+            "contentName": "meta.embedded.block.xml",
+            "beginCaptures": {
+                "1": {
+                    "name": "entity.name.function.tagged-template.js owl-inline-template"
+                },
+                "2": {
+                    "name": "punctuation.definition.string.template.begin.js string.template.js"
+                }
+            },
+            "end": "(`)",
+            "endCaptures": {
+                "1": {
+                    "name": "punctuation.definition.string.template.end.js string.template.js"
+                }
+            },
+            "patterns": [
+                {
+                    "include": "owl.template"
+                },
+                {
+                    "include": "text.xml"
+                }
+            ]
+        }
+    }
+}