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/self-service/app-configuration/app-configuration.component.ts

@@ -1,5 +1,5 @@
 /** Angular Imports */
-import { Component, OnInit } from '@angular/core';
+import { Component } from '@angular/core';
 
 /**
  * Self service app configuration component.
@@ -11,7 +11,7 @@ import { Component, OnInit } from '@angular/core';
   templateUrl: './app-configuration.component.html',
   styleUrls: ['./app-configuration.component.scss']
 })
-export class AppConfigurationComponent implements OnInit {
+export class AppConfigurationComponent {
 
   /** Placeholder for languages. */
   languages: any;
@@ -28,7 +28,4 @@ export class AppConfigurationComponent implements OnInit {
 
   constructor() { }
 
-  ngOnInit() {
-  }
-
 }

src/app/self-service/self-service.component.ts

@@ -1,5 +1,5 @@
 /** Angular Imports */
-import { Component, OnInit } from '@angular/core';
+import { Component } from '@angular/core';
 
 /**
  * Self service component.
@@ -11,11 +11,8 @@ import { Component, OnInit } from '@angular/core';
   templateUrl: './self-service.component.html',
   styleUrls: ['./self-service.component.scss']
 })
-export class SelfServiceComponent implements OnInit {
+export class SelfServiceComponent {
 
   constructor() { }
 
-  ngOnInit() {
-  }
-
 }

src/app/self-service/task-management/task-management.component.ts

@@ -1,15 +1,12 @@
-import { Component, OnInit } from '@angular/core';
+import { Component } from '@angular/core';
 
 @Component({
   selector: 'mifosx-task-management',
   templateUrl: './task-management.component.html',
   styleUrls: ['./task-management.component.scss']
 })
-export class TaskManagementComponent implements OnInit {
+export class TaskManagementComponent {
 
   constructor() { }
 
-  ngOnInit() {
-  }
-
 }

src/app/self-service/users/view-user/view-user.component.ts

@@ -1,5 +1,5 @@
 /** Angular Imports */
-import { Component, OnInit } from '@angular/core';
+import { Component } from '@angular/core';
 import { ActivatedRoute, Router } from '@angular/router';
 import { ChangePasswordDialogComponent } from 'app/shared/change-password-dialog/change-password-dialog.component';
 import { MatDialog } from '@angular/material/dialog';
@@ -17,7 +17,7 @@ import { UserService } from '../user.service';
   templateUrl: './view-user.component.html',
   styleUrls: ['./view-user.component.scss']
 })
-export class ViewUserComponent implements OnInit {
+export class ViewUserComponent {
 
   /** Self service user. */
   user: any;
@@ -39,9 +39,6 @@ export class ViewUserComponent implements OnInit {
     });
   }
 
-  ngOnInit() {
-  }
-
   /**
    * Open Dialog to Change Password
    */