0.5.6: Update info format

Update confgenerator:

1. update info format
2. update conf generator

Update gitbook:

1. update version
2. update GENCONF
3. update changelog

0.5.5: Add test interface

Update imageAPI:

1. add target 'test_config' to check the compose file
2. show the iptables rule when checking status
3. add target 'test_start'
4. add target 'test_restart'
5. add target 'test_stop'
6. add target 'test_remove'

Update gitbook:

1. update change log
2. add target 'test_config' in deployment doc
3. update dependency doc
4. add work flow doc for developer

0.5.1: Update confgenerator

Update confgenerator:

1. update interface : use '-f' instead of [conf-info].
2. delete useless comments in confgenerator.
3. rename confgenerator from bypass_confgenerator to confgenerator
4. Update file name in generated configuration : 1) rename bypass_conf/ to conf/ 2) rename bypass-config.env to config.env

Update imageAPI:

1. stay true when checking status.
2. add another line when adding environment variable.
3. Fix issue:
   • description: iptables rules and ipset is not removed after stop.
   • reason: lost commands for cleaning iptables rules and ipsets when stop.
   • solution: execute script clean-rule and clean-ipset in container when stop.
4. update configuration filename.

Update Makefile:

1. Add imageAPI to release package.

Add .gitignore:

1. ignore python cache.
2. ignore generated compose file.
3. ignore generated bypass configuration.
4. ignore vscode setting.

Update gitbook:

1. update the name of imageAPI release package.
2. update the structure of generated configuration.
3. update version to 0.5.1.
4. modify the confgenerator module name from bypass_confgenerator to confgenerator.
5. add changelog document.
6. fix format in doc dependency.
7. update doc confgen: 1) use '-f' to specify conf-info. 2) fix some typos. 3) update explanation of conf-info.