Add a new GitHub issue template for tasks (#2)

Author: nathanjmcdougall

.github/ISSUE_TEMPLATE/feature-development-task.md

@@ -0,0 +1,29 @@
+---
+name: Feature Development Task
+about: A tightly scoped task for a developer.
+title: ''
+labels: ''
+assignees: nathanjmcdougall
+
+---
+
+**Motivation**
+A clear and concise description of what benefit you would get from this feature.
+
+**Summary of desired feature**
+A clear and concise description of what you want to happen.
+
+**Design**
+An explanation of the general approach and philosophy of the proposed design.
+
+**Describe alternatives you've considered**
+A clear and concise description of any alternative solutions or feature, or designs you've considered.
+
+**Testing Strategy**
+What sort of tests will be written?
+
+**Steps**
+An outline of steps required to implement this feature.
+
+**Acceptance Criteria**
+When would enough be done to consider this task completed?