Improve Tests using tapejs

[rajeshsegu]

I hated the tests in this library as they used just colors to know if a test is passed or failed. I have implemented tapejs tests for this module to make sure we can integrate them with any ci to validate every commit that goes into this module.

now you can run:

npm run test

1..26 tests 26 pass 26 ok

npm run coverage

----------------------	----------	----------	----------	----------	----------------	File	% Stmts	% Branch	% Funcs	% Lines	Uncovered Lines
node-maxmind-db/	95.45	100	85.71	95.45
index.js	95.45	100	85.71	95.45	39
node-maxmind-db/lib/	87.42	74.36	80.33	88.4
Decoder.js	86.78	71.01	85.71	88.3	... 260,301,318
IPParser.js	100	100	100	100
Metadata.js	82.86	100	50	82.86	... 28,32,36,40
Reader.js	85.37	72.22	86.67	86.42	... 132,134,154
----------------------	----------	----------	----------	----------	----------------
All files	87.93	75.21	80.88	88.86
----------------------	----------	----------	----------	----------	----------------

[rajeshsegu]

Also, is there a reason why there is 4 space indent at places and 2 space indent at other places ? I like the 2 space indent better. If we agree on something we can make this more uniform. Thanks.

[rajeshsegu]

@EaterOfCode @PaddeK any thing more that you guys want me to fix ?

[the-eater]

sorry for the late reply, my personal favor is on 4 spaces as the original code was 4 space indent. I may have ruined it by mixing tabs with it. the code I wrote for this project is extremely bad. (Im sorry @PaddeK). the only thing that really still needs to be fixed is caching as lookups take alot of time.

I have made a patch for adding path lookup and ipv4 start node caching but never found the motivation afterwards to finish it: here.

[rajeshsegu]

@EaterOfCode @PaddeK Please do review

• added .editorconfig to the project to make sure that code feels more uniform

[rajeshsegu]

@EaterOfCode @PaddeK lets merge this if you guys do not have more review comments. Thanks in advance.