Add Ask Mode Change Template (#2941)

* add breaking change template

* rename template and rework to suit the late rel exemption purpose

* update testing-attestation name

* add oter libraries sections and notify rel v-team sections

* reduce verbiage

* reduce verbiage pt 2

* accept all suggestions

* change requests

* rm required from 'no' option in other libraries section

* rename tempalte to ask mode change

Author: kllysng

.github/ISSUE_TEMPLATE/ask_mode_change.yml

@@ -0,0 +1,73 @@
+# This issue template is for use in opening issues that document Ask Mode Changes, for features or changes that come after the release candidate deadline.
+
+name: "IdentityModel Ask Mode Change"
+description: Request an exception to release a feature or add any changes after the release candidate deadline, excludes fixes for preview regressions.
+title: "[Ask Mode Change]: "
+labels: "Ask Mode Change"
+body:
+  - type: textarea
+    id: description
+    attributes:
+      label: Description
+      description: Brief description of the feature.
+    validations:
+      required: true
+  - type: input
+    id: release-date
+    attributes:
+      label: Date
+      description: Which release date are you targeting?
+    validations:
+      required: true
+  - type: dropdown
+    id: version-bump
+    attributes:
+      label: Type of version bump
+      description: Indicate if this feature would incur a major, minor, or patch version bump. 
+      options:
+        - label: "Major"
+        - label: "Minor"
+        - label: "Patch"
+        - label: "Not sure"
+    validations:
+      required: true
+  - type: checkboxes
+    id: other-libraries
+    attributes:
+      label: Other libraries
+      description: Does this feature release rely on the release of any other ID4S libraries?
+      options:
+        - label: "Yes"
+        - label: "No"
+    validations:
+      required: true
+  - type: checkboxes
+    id: if-relies-on-other-libraries
+    attributes:
+      label: If you answered "yes" to the previous question, please indicate which libraries.
+      description: Check the boxes of the other ID4S libraries to be released.
+      options:
+        - label: Microsoft.Identity.Abstractions
+  - type: textarea
+    id: reason
+    attributes:
+      label: Reason for exception
+      description: Please explain why the feature release can't wait until the next month.
+    validations:
+      required: true
+  - type: textarea
+    id: testing-attestation
+    attributes:
+      label: Testing attestation
+      description: Describe the testing and validation that was conducted for this feature. Include links to test coverage, proof of partner validation, etc.
+    validations:
+      required: true
+  - type: checkboxes
+    id: terms
+    attributes:
+      label: Notify the Release V-Team
+      description: After submitting this issue, you agree to notify the release v-team. 
+      options:
+        - label: I agree.
+          required: true
+