Refactor array, structured and JSON expression builders.

[Tigrov]

• Refactor ArrayExpressionBuilder, StructuredExpressionBuilder, JsonExpressionBuilder;
• Add ArrayLazyColumn and StructuredLazyColumn.

Related PR

• Refactor array, structured and JSON expressions. db#929

Q	A
Is bugfix?	❌
New feature?	❌
Breaks BC?	✔️/❌
Fixed issues

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 99.88%. Comparing base (a739155) to head (570a2b4).
Report is 1 commits behind head on master.

Additional details and impacted files

@@             Coverage Diff              @@
##             master     #386      +/-   ##
============================================
+ Coverage     99.74%   99.88%   +0.13%     
- Complexity      255      275      +20     
============================================
  Files            28       32       +4     
  Lines           794      844      +50     
============================================
+ Hits            792      843      +51     
+ Misses            2        1       -1     

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