Task: Simplify development

The base directory has all shell scripts in scripts/
and all example/test files in examples/.
A Makefile provides all the commands with helpful information.
If a developer simply types `make` then vendor is properly updated,
the code is formatted, linted, tested, built, acceptance test run,
and installed.

Linting errors resolved.
Ignored test case (`TestParsePath`) updated to work as expected.

examples/sample.yaml

@@ -0,0 +1,9 @@
+a: Easy! as one two three
+b:
+  c: 2
+  d: [3, 4]
+  e:
+    - name: fred
+      value: 3
+    - name: sam
+      value: 4