code-gen: simplify generated select query via query builder

[dirkdev98]

No description provided.

[github-actions]

==== C8 test coverage ====
Statements: 66.32% ( 24361/36730 )
Branches : 66.06% ( 2678 /4054 )
Functions : 65.96% ( 810 /1228 )
Lines : 66.32% ( 24361 /36730 )

[github-actions]

==== Benchmark result ====

Node.js version: 15
Total benchmarks: 15
          Passed: 15
          Failed: 0
-----------
router - github static path              200000  iterations    8615  ns/op
router - github path params              100000  iterations   10273  ns/op
compas validator simple                 5000000  iterations     255  ns/op
yup validator simple                     100000  iterations   12144  ns/op
fastest-validator validator simple     10000000  iterations     112  ns/op
compas validator nested                 1000000  iterations    1506  ns/op
yup validator nested                      50000  iterations   43818  ns/op
fastest-validator validator nested      2000000  iterations     532  ns/op
logger - strings                         500000  iterations    2525  ns/op
logger - objects                         500000  iterations    3091  ns/op
logger - deep objects                    500000  iterations    5386  ns/op
uuid                                    5000000  iterations     360  ns/op
uuid.isValid                           10000000  iterations     146  ns/op
isNil                                 500000000  iterations       0  ns/op
isPlainObject                         100000000  iterations      19  ns/op

[github-actions]

==== Benchmark result ====

Node.js version: 14
Total benchmarks: 15
          Passed: 15
          Failed: 0
-----------
router - github static path              200000  iterations    9701  ns/op
router - github path params              100000  iterations   11309  ns/op
compas validator simple                 5000000  iterations     294  ns/op
yup validator simple                     100000  iterations   13573  ns/op
fastest-validator validator simple     10000000  iterations     112  ns/op
compas validator nested                 1000000  iterations    1468  ns/op
yup validator nested                      50000  iterations   49228  ns/op
fastest-validator validator nested      2000000  iterations     563  ns/op
logger - strings                         500000  iterations    2711  ns/op
logger - objects                         500000  iterations    3569  ns/op
logger - deep objects                    500000  iterations    5826  ns/op
uuid                                    2000000  iterations     600  ns/op
uuid.isValid                           10000000  iterations     133  ns/op
isNil                                 500000000  iterations       0  ns/op
isPlainObject                         100000000  iterations      19  ns/op