First batch of automatic tests for Swedish braille (#284)

* Create swedish.rs

* Added examples from chapter 6

* Finished examples from chapter 6

* Fixed typo

* Test

* Added tests from chapter 5

* Finished rules from chapter 5

* Started on tests from chapter 7

* Added tests from chapter 7

* Added more tests from chapter 7

* Tests from chapter 7

* More chapter 7 tests

* More tests added

* Chapter 7 tests

* Inserted Unicode braille

* Removed template comment