Created EmailType.php etc to switch from bespoke email field to core "email"

Closes #3525352

config/install/core.entity_form_display.crm_contact_detail.email.default.yml

+langcode: en
+status: true
+dependencies:
+  config:
+    - crm.crm_contact_detail_type.email
+    - field.field.crm_contact_detail.email.email
+    - field.field.crm_contact_detail.email.email_type
+id: crm_contact_detail.email.default
+targetEntityType: crm_contact_detail
+bundle: email
+mode: default
+content:
+  email:
+    type: email_default
+    weight: 1
+    region: content
+    settings:
+      placeholder: ''
+      size: 60
+    third_party_settings: {  }
+  email_type:
+    type: options_select
+    weight: 0
+    region: content
+    settings: {  }
+    third_party_settings: {  }
+hidden:
+  created: true
+  status: true
+  uid: true