feat: Add initial support for PlatformIO and Arduino

.travis.yml

@@ -10,6 +10,12 @@ language: cpp
 # It is more tedious, but grants us far more flexibility.
 matrix:
   include:
+    - os: linux
+      dist: trusty
+      sudo: required
+      group: deprecated-2017Q3
+      install: ./ci/install-platformio.sh
+      script: ./ci/build-platformio.sh      
     - os: linux
       compiler: gcc
       sudo : true
@@ -44,6 +50,9 @@ matrix:
       env: BUILD_TYPE=Release VERBOSE=1 CXX_FLAGS=-std=c++11
       if: type != pull_request
 
+before_install:
+    - chmod -R +x ./ci/*.sh 
+
 # These are the install and build (script) phases for the most common entries in the matrix.  They could be included
 # in each entry in the matrix, but that is just repetitive.
 install: