refractor: accounting module (#300)

* Refractor components.
* Add resolvers.
* Add relative router links.
* Replace mat-icons by font-awesome icons.
* Add comments.

Fixes: #298

src/app/accounting/accounting.module.ts

@@ -1,22 +1,24 @@
+/** Angular Imports */
 import { NgModule } from '@angular/core';
-import { CommonModule } from '@angular/common';
-import { FormsModule, ReactiveFormsModule } from '@angular/forms';
 
-import { CoreModule } from '../core/core.module';
-import { AccountingComponent } from './accounting.component';
+/** Custom Modules */
+import { SharedModule } from '../shared/shared.module';
 import { AccountingRoutingModule } from './accounting-routing.module';
+
+/** Custom Components */
+import { AccountingComponent } from './accounting.component';
 import { FrequentPostingsComponent } from './frequent-postings/frequent-postings.component';
+import { CreateJournalEntryComponent } from './create-journal-entry/create-journal-entry.component';
+import { SearchJournalEntryComponent } from './search-journal-entry/search-journal-entry.component';
 import { ViewTransactionComponent } from './view-transaction/view-transaction.component';
 import { RevertTransactionComponent } from './revert-transaction/revert-transaction.component';
 import { ViewJournalEntryComponent } from './view-journal-entry/view-journal-entry.component';
-import { CreateJournalEntryComponent } from './create-journal-entry/create-journal-entry.component';
-import { SearchJournalEntryComponent } from './search-journal-entry/search-journal-entry.component';
 import { FinancialActivityMappingsComponent } from './financial-activity-mappings/financial-activity-mappings.component';
 import { CreateFinancialActivityMappingComponent } from './financial-activity-mappings/create-financial-activity-mapping/create-financial-activity-mapping.component';
 import { ViewFinancialActivityMappingComponent } from './financial-activity-mappings/view-financial-activity-mapping/view-financial-activity-mapping.component';
 import { EditFinancialActivityMappingComponent } from './financial-activity-mappings/edit-financial-activity-mapping/edit-financial-activity-mapping.component';
+import { MigrateOpeningBalancesComponent } from './migrate-opening-balances/migrate-opening-balances.component';
 import { ChartOfAccountsComponent } from './chart-of-accounts/chart-of-accounts.component';
-
 import { CreateGlAccountComponent } from './chart-of-accounts/create-gl-account/create-gl-account.component';
 import { ViewGlAccountComponent } from './chart-of-accounts/view-gl-account/view-gl-account.component';
 import { EditGlAccountComponent } from './chart-of-accounts/edit-gl-account/edit-gl-account.component';
@@ -33,28 +35,30 @@ import { ProvisioningEntriesComponent } from './provisioning-entries/provisionin
 import { CreateProvisioningEntryComponent } from './provisioning-entries/create-provisioning-entry/create-provisioning-entry.component';
 import { ViewProvisioningEntryComponent } from './provisioning-entries/view-provisioning-entry/view-provisioning-entry.component';
 import { ViewProvisioningJournalEntriesComponent } from './provisioning-entries/view-provisioning-journal-entries/view-provisioning-journal-entries.component';
-import { MigrateOpeningBalancesComponent } from './migrate-opening-balances/migrate-opening-balances.component';
 
+/**
+ * Accounting Module
+ *
+ * All components related to accounting functions should be declared here.
+ */
 @NgModule({
   imports: [
-    CoreModule,
-    CommonModule,
-    FormsModule,
-    ReactiveFormsModule,
+    SharedModule,
     AccountingRoutingModule
   ],
   declarations: [
     AccountingComponent,
     FrequentPostingsComponent,
+    CreateJournalEntryComponent,
+    SearchJournalEntryComponent,
     ViewTransactionComponent,
     RevertTransactionComponent,
     ViewJournalEntryComponent,
-    CreateJournalEntryComponent,
-    SearchJournalEntryComponent,
     FinancialActivityMappingsComponent,
     CreateFinancialActivityMappingComponent,
     ViewFinancialActivityMappingComponent,
     EditFinancialActivityMappingComponent,
+    MigrateOpeningBalancesComponent,
     ChartOfAccountsComponent,
     CreateGlAccountComponent,
     ViewGlAccountComponent,
@@ -71,8 +75,7 @@ import { MigrateOpeningBalancesComponent } from './migrate-opening-balances/migr
     ProvisioningEntriesComponent,
     CreateProvisioningEntryComponent,
     ViewProvisioningEntryComponent,
-    ViewProvisioningJournalEntriesComponent,
-    MigrateOpeningBalancesComponent
+    ViewProvisioningJournalEntriesComponent
   ],
   entryComponents: [
     RevertTransactionComponent,