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/loans/create-loans-account/create-loans-account.component.html

@@ -76,7 +76,7 @@
       <ng-template matStepLabel>{{"labels.inputs.PREVIEW" | translate}}</ng-template>
 
       <mifosx-loans-account-preview-step [loansAccountTemplate]="loansAccountTemplate"
-        [loansAccountProductTemplate]="loansAccountProductTemplate" [loansAccount]="loansAccount" (submit)="submit()">
+        [loansAccountProductTemplate]="loansAccountProductTemplate" [loansAccount]="loansAccount" (submitEvent)="submit()">
       </mifosx-loans-account-preview-step>
 
     </mat-step>

src/app/loans/create-loans-account/create-loans-account.component.ts

@@ -1,5 +1,5 @@
 /** Angular Imports */
-import { Component, OnInit, QueryList, ViewChild, ViewChildren } from '@angular/core';
+import { Component, QueryList, ViewChild, ViewChildren } from '@angular/core';
 import { ActivatedRoute, Router } from '@angular/router';
 
 /** Custom Services */
@@ -21,7 +21,7 @@ import { LoansAccountDatatableStepComponent } from '../loans-account-stepper/loa
   templateUrl: './create-loans-account.component.html',
   styleUrls: ['./create-loans-account.component.scss']
 })
-export class CreateLoansAccountComponent implements OnInit {
+export class CreateLoansAccountComponent {
 
   /** Imports all the step component */
   @ViewChild(LoansAccountDetailsStepComponent, { static: true }) loansAccountDetailsStep: LoansAccountDetailsStepComponent;
@@ -63,8 +63,6 @@ export class CreateLoansAccountComponent implements OnInit {
     });
   }
 
-  ngOnInit() { }
-
   /**
    * Sets loans account product template and collateral template
    * @param {any} $event API response