CE-3625: Migrate auth components

• D&M is the only app using AccessControl and it was using a local version not this from ess-common. I found another way to restrict access in D&M that I think is a good solution and therefor deleted AccessControl component all together. We'll see what you think.
• Renamed userContext to AuthContext since it handles more than just the user info.
• This also contains some fixes for comments on previous MR.
• I have a draft MR for D&M which can be used to test

src/stories/auth/AccessControl.stories.jsx

@@ -101,3 +101,10 @@ Default.args = {
   allowedRoles: ["user"],
   allowedUsersWithRoles: [{ user: "test user", role: "user" }]
 };
+
+export const NoAccess = (args) => <Template {...args} />;
+NoAccess.args = {
+  testUser: { loginName: "test user" },
+  testRoles: ["user"],
+  allowedRoles: ["admin"]
+};