feat: add clients view page

- add client view page
- add general tab 
- add status lookup pipe to store styles based on status
- add accounts filter pipe to filter accounts
- add status related colors in _color.scss

Fixes: #216

src/app/clients/clients-view/clients-view.component-theme.scss

@@ -0,0 +1,13 @@
+@import "~@angular/material/theming";
+
+@mixin clients-view-component-theme($theme) {
+  $primary: map-get($theme, primary);
+
+  mifosx-clients-view {
+    .client-card {
+      .header {
+        background-color: mat-color($primary, 500);
+      }
+    }
+  }
+}