chore: add issue templates [skip ci] (#62)

Author: Eugene Cheung

.github/ISSUE_TEMPLATE/bug_report.yml

@@ -0,0 +1,56 @@
+name: Bug report
+description: Report an issue
+labels: [bug]
+body:
+
+  - type: input
+    id: bug-version
+    attributes:
+      label: Version
+      description: The version of cdk-monitoring-constructs you're using.
+      placeholder: |
+        Example: "v0.0.20"
+    validations:
+      required: true
+
+  - type: textarea
+    id: bug-reproduce-steps
+    attributes:
+      label: Steps and/or minimal code example to reproduce
+      description: Provide an example of the issue.
+      placeholder: |
+        Example:
+          1. First step
+          2. Second step
+          3. Issue here
+    validations:
+      required: true
+
+  - type: textarea
+    id: bug-expected-behavior
+    attributes:
+      label: Expected behavior
+      description: Explain what you expect to happen.
+      placeholder: |
+        Example:
+          "This should happen..."
+    validations:
+      required: true
+
+  - type: textarea
+    id: bug-actual-behavior
+    attributes:
+      label: Actual behavior
+      description: Explain what actually happens.
+      placeholder: |
+        Example:
+          "This happened instead..."
+    validations:
+      required: true
+
+  - type: textarea
+    id: bug-other-details
+    attributes:
+      label: Other details
+      placeholder: |
+        Additional details and attachments.

.github/ISSUE_TEMPLATE/config.yml

@@ -0,0 +1,5 @@
+blank_issues_enabled: true
+contact_links:
+  - name: Report a security vulnerability
+    url: http://aws.amazon.com/security/vulnerability-reporting/
+    about: Please report security vulnerabilities to AWS/Amazon Security instead of on GitHub.

.github/ISSUE_TEMPLATE/feature_request.yml

@@ -0,0 +1,22 @@
+name: Feature request
+description: Suggest a new feature or enhancement
+labels: [feature-request]
+body:
+
+  - type: input
+    id: feature-scope
+    attributes:
+      label: Feature scope
+      description: The relevant metric namespace.
+      placeholder: |
+        Example: "DynamoDB"
+    validations:
+      required: true
+
+  - type: textarea
+    id: feature-description
+    attributes:
+      label: Describe your suggested feature
+      description: What new feature or enhancement should be added?
+    validations:
+      required: true