feat: support number range sharding algorithm

[dk-lockdown]

ref: #235

Ⅰ. Describe what this PR did

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 #262 (ec165a8) into dev (4d6da29) will increase coverage by 0.03%.
The diff coverage is 33.55%.

@@            Coverage Diff             @@
##              dev     #262      +/-   ##
==========================================
+ Coverage   43.76%   43.80%   +0.03%     
==========================================
  Files          82       84       +2     
  Lines        9884    10043     +159     
==========================================
+ Hits         4326     4399      +73     
- Misses       5106     5171      +65     
- Partials      452      473      +21     

Impacted Files	Coverage Δ
pkg/cond/sharding_algorithm.go	0.00% <0.00%> (-18.25%)	⬇️
pkg/topo/topo.go	75.43% <ø> (-0.43%)	⬇️
pkg/cond/algo_number_mod.go	20.00% <20.00%> (ø)
pkg/cond/algo_number_range.go	45.06% <45.06%> (ø)
pkg/executor/sharding.go	46.15% <50.00%> (-0.24%)	⬇️

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