Add ESLint and Prettier tooling

.github/main.workflow

@@ -1,11 +1,23 @@
 workflow "CI" {
   on = "push"
-  resolves = "Test"
+  resolves = ["Format", "Lint", "Test"]
 }
 
 action "Dependencies" {
   uses = "actions/npm@v2.0.0"
-  args = "ci"
+  args = "install"
+}
+
+action "Format" {
+  needs = "Dependencies"
+  uses = "actions/npm@v2.0.0"
+  args = "run format"
+}
+
+action "Lint" {
+  needs = "Dependencies"
+  uses = "actions/npm@v2.0.0"
+  args = "run lint"
 }
 
 action "Test" {