Setup initial reviewers

Author: abdonrd

.github/CODEOWNERS

@@ -0,0 +1 @@
+/data/ @quantum-advantage-tracker/reviewers

.github/ISSUE_TEMPLATE/01-submission-path-observable-estimations.yml

@@ -1,6 +1,8 @@
 name: 📊 Path 1 - Observable estimations submission
 description: Submit a problem solution to the observable estimations tracker - Trust through rigorous error control
 labels: ['path: observable-estimations', 'submission']
+assignees:
+  - minhctran
 body:
   - type: markdown
     attributes:

.github/ISSUE_TEMPLATE/02-submission-path-variational-problems.yml

@@ -1,6 +1,8 @@
 name: 🌀 Path 2 - Variational problems submission
 description: Submit a problem solution to the variational problems tracker - Certifiable quantum solutions via the variational principle
 labels: ['path: variational-problems', 'submission']
+assignees:
+  - jrm874
 body:
   - type: markdown
     attributes:

.github/ISSUE_TEMPLATE/03-submission-path-classically-verifiable-problems.yml

@@ -1,6 +1,8 @@
 name: 🗝️ Path 3 - Classically verifiable problems submission
 description: Submit a problem solution for the classically verifiable problems tracker - When quantum outputs are hard to find but easy to check
 labels: ['path: classically-verifiable-problems', 'submission']
+assignees:
+  - d-kremer
 body:
   - type: markdown
     attributes: