MycroftOS: Implementation of a very first initial bootable version

- Add Buildroot patches to downgrade / upgrade package dependencies
  in line with the Mycroft A.I. software stack requirements.
- Add buildroot additional package dependencies in line with the
  Mycroft A.I. software stack requirements.
- Update rpi3 defconfig file.
- Implement initial root_fs overlay filestructure.
- Addition of some quick and dirty helper scripts.
- Update of README to reflect these changes.

buildroot-external/package/python-fasteners/Config.in

@@ -0,0 +1,8 @@
+config BR2_PACKAGE_PYTHON_FASTENERS
+	bool "python-fasteners"
+	select BR2_PACKAGE_PYTHON_SIX # runtime
+	select BR2_PACKAGE_PYTHON_MONOTONIC # runtime
+	help
+	  A python package that provides useful locks.
+
+	  https://github.com/harlowja/fasteners

buildroot-external/package/python-fasteners/python-fasteners.hash

@@ -0,0 +1,5 @@
+# md5, sha256 from https://pypi.org/pypi/fasteners/json
+md5	fcb13261c9b0039d9b1c4feb9bc75e04  fasteners-0.14.1.tar.gz
+sha256	427c76773fe036ddfa41e57d89086ea03111bbac57c55fc55f3006d027107e18  fasteners-0.14.1.tar.gz
+# Locally computed sha256 checksums
+sha256	d2de2f566d2d0e0b509fb0ea1fa3669f49064ab1de21c57453cab3750a234e8f  LICENSE

buildroot-external/package/python-fasteners/python-fasteners.mk

@@ -0,0 +1,14 @@
+################################################################################
+#
+# python-fasteners
+#
+################################################################################
+
+PYTHON_FASTENERS_VERSION = 0.14.1
+PYTHON_FASTENERS_SOURCE = fasteners-$(PYTHON_FASTENERS_VERSION).tar.gz
+PYTHON_FASTENERS_SITE = https://files.pythonhosted.org/packages/f4/6f/41b835c9bf69b03615630f8a6f6d45dafbec95eb4e2bb816638f043552b2
+PYTHON_FASTENERS_SETUP_TYPE = setuptools
+PYTHON_FASTENERS_LICENSE = Apache-2.0
+PYTHON_FASTENERS_LICENSE_FILES = LICENSE
+
+$(eval $(python-package))