wellknown: add new wellknown type version

[Kybxd]

• close wellknown: support new wellknown type Version #247

[codecov]

Codecov Report

Attention: Patch coverage is 84.90566% with 16 lines in your changes missing coverage. Please review.

Project coverage is 71.14%. Comparing base (180291d) to head (8bb21b0).
Report is 1 commits behind head on master.

Files with missing lines	Patch %	Lines
xerrors/ecode.go	0.00%	10 Missing ⚠️
internal/x/xproto/value.go	92.94%	4 Missing and 2 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #248      +/-   ##
==========================================
+ Coverage   71.00%   71.14%   +0.13%     
==========================================
  Files          80       80              
  Lines       10184    10288     +104     
==========================================
+ Hits         7231     7319      +88     
- Misses       2388     2402      +14     
- Partials      565      567       +2     

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