Add type field to issue templates

.github/ISSUE_TEMPLATE/report-a-bug.yml

@@ -1,7 +1,7 @@
 ---
 name: Report a bug or defect
 description: Report problems, defects and bugs with Solus, the installer, or software we ship.
-labels:
+type:
   - Bug
 body:
   - type: checkboxes

.github/ISSUE_TEMPLATE/report-packaging-problems.yml

@@ -1,6 +1,8 @@
 ---
 name: Report a packaging problem
 description: Report problems with a package. This includes build failures or other issues related to a package. This is *not* for bugs with installed software.
+type:
+  - Bug
 labels: ["Packaging Problem", "Priority: Normal"]
 title: "packagename: problem with package"
 body:

.github/ISSUE_TEMPLATE/request-new-package.yml

@@ -1,5 +1,7 @@
 name: Request a package to be added
 description: Request a new package to be added to the Solus repository.
+type:
+  - Feature
 labels: ["Package: Addition Request", "Priority: Wishlist"]
 title: "What's the package name?"
 body:

.github/ISSUE_TEMPLATE/request-package-removal.yml

@@ -1,6 +1,8 @@
 ---
 name: Request a package to be removed
 description: Request a package to be removed from the Solus repository. The software may be unmaintained, replaced by another project, deprecated, or should be removed for some other reason.
+type:
+  - Task
 labels:
   - "Package: Removal Request"
 body:

.github/ISSUE_TEMPLATE/request-package-update.yml

@@ -1,6 +1,8 @@
 ---
 name: Request a package to be updated
 description: Request an update to a package available in the Solus repository.
+type:
+  - Task
 labels:
   - "Package: Update Request"
 body: