feat: Add new expression variables and support for luxon

* 🔨 scaffolding for  and

* 🔨 added autocomplete

* 🔨 N8N-2961-New-expression-variables

* 🔨 added luxon DateTime to expressions and Functions node, replased  with , clean up

* 🔨 added  and , fixed  return values

* 🔨 added tests for new variables

* 🔨 removed unnecessary import

* 🔨 return type fix

* 🔨 working on review, wip

* 🔨 working on review, improved errors, wip

* 🔨 fixed disappearing error message box

* 🔨 excluded variables from function node, added jmespath setup

* :hamer: added $jmsepath to function nodes

* 🔨 replacing proxy with data when using jmespath

* 🔨 renamed function

* 🔨 updated tips to function nodes

* 🔨 fixes for errors messages

* 🔨 review fixes

* 🔨 removed $input and $() from autocomplete

* ⚡ removed comments

* ⚡ Remove unused code

Co-authored-by: Jan Oberhauser <jan.oberhauser@gmail.com>

packages/workflow/package.json

@@ -29,8 +29,10 @@
   "devDependencies": {
     "@types/express": "^4.17.6",
     "@types/jest": "^26.0.13",
+    "@types/jmespath": "^0.15.0",
     "@types/lodash.get": "^4.4.6",
     "@types/lodash.merge": "^4.6.6",
+    "@types/luxon": "^2.0.9",
     "@types/lodash.set": "^4.3.6",
     "@types/node": "14.17.27",
     "@types/xml2js": "^0.4.3",
@@ -48,10 +50,12 @@
     "typescript": "~4.3.5"
   },
   "dependencies": {
+    "jmespath": "^0.16.0",
     "lodash.get": "^4.4.2",
     "lodash.isequal": "^4.5.0",
     "lodash.merge": "^4.6.2",
     "lodash.set": "^4.3.2",
+    "luxon": "^2.3.0",
     "riot-tmpl": "^3.0.8",
     "xml2js": "^0.4.23"
   },