build: Replace Codelyzer and TSLint with Angular ESLint

Migrate from the deprecated TSLint to Angluar ESLint. Also fix current
linting issues in the code, in particular:

- Use strict equals operators (=== and !==)
- Remove empty lifecycle methods (mostly ngOnInit)
- Output bindings including aliases should not be named as standard dom
  events (submit)
- Async pipe results should not be negated

src/app/organization/employees/view-employee/view-employee.component.ts

@@ -1,5 +1,5 @@
 /** Angular Imports */
-import { Component, OnInit } from '@angular/core';
+import { Component } from '@angular/core';
 import { ActivatedRoute } from '@angular/router';
 
 /**
@@ -10,7 +10,7 @@ import { ActivatedRoute } from '@angular/router';
   templateUrl: './view-employee.component.html',
   styleUrls: ['./view-employee.component.scss']
 })
-export class ViewEmployeeComponent implements OnInit {
+export class ViewEmployeeComponent {
 
   /** Employee data. */
   employeeData: any;
@@ -25,7 +25,4 @@ export class ViewEmployeeComponent implements OnInit {
     });
   }
 
-  ngOnInit() {
-  }
-
 }