optimize: opt additional-spring-configuration-metadata.json

[wangliang181230]

Ⅰ. Describe what this PR did

1. 补充additional-spring-configuration-metadata.json，在springboot项目中，部分配置项可以提示可选值及其说明。
2. 顺便优化了seata.transport.type和seata.transport.server两个配置，使其兼容大小写以及多格式配置.
3. 协议枚举中，删除UDT及相关的所有注释，因为暂时还不支持。

Ⅱ. Does this pull request fix one issue?

Ⅲ. Why don't you add test cases (unit test/integration test)?

Ⅳ. Describe how to verify it

Ⅴ. Special notes for reviews

[codecov-commenter]

Codecov Report

Merging #2952 into develop will decrease coverage by 0.02%.
The diff coverage is 43.75%.

@@              Coverage Diff              @@
##             develop    #2952      +/-   ##
=============================================
- Coverage      50.25%   50.22%   -0.03%     
- Complexity      3051     3053       +2     
=============================================
  Files            599      599              
  Lines          19430    19443      +13     
  Branches        2384     2386       +2     
=============================================
+ Hits            9764     9766       +2     
- Misses          8690     8696       +6     
- Partials         976      981       +5     

Impacted Files	Coverage Δ	Complexity Δ
.../java/io/seata/core/serializer/SerializerType.java	0.00% <0.00%> (ø)	0.00 <0.00> (ø)
...ure/properties/client/ThreadFactoryProperties.java	45.94% <ø> (ø)	8.00 <0.00> (ø)
...nfigure/properties/client/TransportProperties.java	52.00% <ø> (ø)	7.00 <0.00> (ø)
.../autoconfigure/properties/client/RmProperties.java	44.00% <25.00%> (-3.62%)	5.00 <0.00> (ø)
.../java/io/seata/core/rpc/TransportProtocolType.java	72.72% <40.00%> (-27.28%)	3.00 <1.00> (+1.00)	⬇️
...in/java/io/seata/core/rpc/TransportServerType.java	80.00% <50.00%> (-20.00%)	4.00 <2.00> (+2.00)	⬇️
.../java/io/seata/core/rpc/netty/NettyBaseConfig.java	36.11% <100.00%> (ø)	2.00 <0.00> (ø)
...o/seata/server/coordinator/DefaultCoordinator.java	54.63% <0.00%> (-0.52%)	28.00% <0.00%> (-2.00%)
...in/java/io/seata/server/session/GlobalSession.java	83.71% <0.00%> (-0.46%)	71.00% <0.00%> (-1.00%)

[slievrly]

LGTM

[funky-eyes]

LGTM