Add Travis YML (#88)

* Add Travis YML

* rename to yml, add editorconfig, add newline

* Add new/renamed files

Author: FokkeZB

.editorconfig

@@ -0,0 +1,7 @@
+# editorconfig.org
+root = true
+
+[*]
+indent_style = space
+indent_size = 2
+insert_final_newline = true

.travis.yml

@@ -0,0 +1,7 @@
+language: c
+sudo: false
+before_install:
+  - source <(curl -SLs https://raw.githubusercontent.com/adafruit/travis-ci-arduino/master/install.sh)
+script:
+  - build_main_platforms
+  - build_platform trinket