Test directory is very large - Ignore test directory for release

[yurynix]

In node_modules, after installing chrome-har, the breakdown is as follows:

 10M	chrome-har

8.0K	./tools
9.7M	./test/perflogs
9.7M	./test
 48K	./node_modules/punycode
 16K	./node_modules/universalify
4.0K	./node_modules/uuid/bin
 36K	./node_modules/uuid/lib
 88K	./node_modules/uuid
 76K	./node_modules/tough-cookie/lib
116K	./node_modules/tough-cookie
268K	./node_modules
 28K	./lib
 10M	.

It's unnecessary large IMO, especially for my use-case, where I want to squeeze my dependencies in an environment with size constraints - AWS Lambda function.

[soulgalore]

Thank you @yurynix !