Adds SparkFun Blynk Board (#6713)

* adds initial commit to boards.txt before actual edits

* reminder to remove vim .swp file

* Removes spaces and modifies outdated tags for menu `CpuFrequency -> xtal` for example

* Adds SparkFun Bynk Board to boards.txt.py, moves .build flags all together for SparkFun Blynk

* runs boards.txt.py to generate files for pull request - all files have been included as instructed at top of boards.txt file

* Deletes three .orig files generated by boards.txt.py: rst, txt, and json

* Moves boards.txt.py back to /tools directory and attempts to change its mode.

* restore 'x' flag

package/package_esp8266com_index.template.json

@@ -352,4 +352,4 @@
          ]
       }
    ]
-}
+}