Add 'project' to user table, add 'manager' role, conditional web render

- Addresses issues #40 #45 #82
- Reworked Navigation Header for all roles
- 'Manager' role added, can be assigned a project-id in config by admins
- BREAKING! -> Added 'project' column in SQLite3 table 'user'
- Manager-Assigned project will be added to all graphql filters: Only show Jobs and Users of given project
- 'My Jobs' Tab for all Roles
- Switched from Bool "isAdmin" to integer authLevels
- Removed critical data frontend logging
- Reworked repo.query.SecurityCheck()

api/schema.graphqls

@@ -160,6 +160,7 @@ type Count {
 type User {
   username: String!
   name:     String!
+  project:  String
   email:    String!
 }