[transaction-builder-generator] fix package name for Java and change diem to startcoin, and update readme

[jiangying000]

Pull request type

Please check the type of change your PR introduces:

• Bugfix
• Feature
• Code style update (formatting, renaming)
• Refactoring (no functional changes, no api changes)
• Build related changes
• Documentation content changes
• Other (please describe):

What is the current behavior?

Issue Number: N/A
#3554
#3469

What is the new behavior?

Other information

[codecov]

Codecov Report

Merging #3555 (1651446) into master (d216459) will increase coverage by 0.25%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #3555      +/-   ##
==========================================
+ Coverage   29.02%   29.27%   +0.25%     
==========================================
  Files         589      589              
  Lines       49864    49864              
  Branches    23450    23450              
==========================================
+ Hits        14468    14592     +124     
- Misses      21179    21233      +54     
+ Partials    14217    14039     -178     

Flag	Coverage Δ
unittests	29.27% <ø> (+0.25%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
sync/src/block_connector/test_write_block_chain.rs	26.36% <0.00%> (-3.87%)	⬇️
sync/src/block_connector/write_block_chain.rs	26.16% <0.00%> (-3.07%)	⬇️
commons/accumulator/src/tree_store/mock.rs	28.58% <0.00%> (-2.85%)	⬇️
vm/natives/src/token.rs	28.89% <0.00%> (-2.22%)	⬇️
commons/service-registry/src/handler_proxy.rs	38.55% <0.00%> (-2.08%)	⬇️
storage/src/lib.rs	54.36% <0.00%> (-2.07%)	⬇️
config/src/helper.rs	39.22% <0.00%> (-1.96%)	⬇️
storage/src/block/mod.rs	54.77% <0.00%> (-1.78%)	⬇️
sync/src/block_connector/test_illegal_block.rs	16.00% <0.00%> (-1.73%)	⬇️
vm/types/src/token/stc.rs	63.24% <0.00%> (-1.47%)	⬇️
... and 58 more

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update d216459...1651446. Read the comment docs.

[jiangying000]

做了些文档，java包名，cli参数名字的修改，但是目前demo还是跑不起来。

[nanne007]

LGTM.
But I don't know if we still need this crate.

[nanne007]

cc @jolestar

[jolestar]

有测试么，生成的代码执行都没问题么？原来有个各语言的测试，但依赖环境比较复杂就没有继续运行。感觉未来可以把这个集成到 mpm 中，第三方应用也可以用来生成代码。

[jiangying000]

有测试么，生成的代码执行都没问题么？原来有个各语言的测试，但依赖环境比较复杂就没有继续运行。感觉未来可以把这个集成到 mpm 中，第三方应用也可以用来生成代码。

现在生成的sdk代码感觉还有不少问题，需要长期比较耐心的调整

[jolestar]

有测试么，生成的代码执行都没问题么？原来有个各语言的测试，但依赖环境比较复杂就没有继续运行。感觉未来可以把这个集成到 mpm 中，第三方应用也可以用来生成代码。

现在生成的sdk代码感觉还有不少问题，需要长期比较耐心的调整

那先合并进去吧