Support for fetching request body from file

• Add support to fetch request body from file
• Fix bug in parsing host header

Hosts header and output file name support

Merge pull request #6 from Joon-L/joonlee/request-body-from-file

Add support to fetch request body from file

Recompiled with Go v1.12.6

Merge pull request #6 from Joon-L/joonlee/request-body-from-file

Add support to fetch request body from file

First OSS version v1.0.0

Link to full_config.yaml