[feat] add ledger compiler support for huobi provider

[ramsayleung]

Description

目前 double-entry-generator 只支持 beancount 后端，增加对 ledger 后端的支持. 针对不同的 provider, 后端需要有对应的输出模板，已有的输出模板包括:

• 普通消费账单的模板: 已支持
• 火币模板1
• 火币模板2
• 火币卖出模板
• 海通买入模板

本次PR 增加 火币模板1, 火币模板2, 火币卖出模板的支持

Modification

概括:

1. compiler/ledger package 增加huobi的支持
2. test 目录增加 huobi-ledger 相关test script
3. example 目录增加 huobi-ledger 相关的生成文件.
4. Makefile 增加新的 test target

Motivation and Context

#92

Dependencies

None

Type of change

Please delete options that are not relevant.

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

How has this been tested?

新增一个 end-to-end 测试脚本, 测试 huobi-ledger 后端生成功能:

• huobi-test-ledger.sh: pass

对生成的 ledger 文件进行语法与格式校验:

• ledger -f test/output/test-huobi-output.ledger bal: pass

make test: all tests pass

[Triple-Z]

LGTM