feat: bump kcl lib to v0.7.0-alpha.1 and impl path selectors for the run API.

[Peefy]

1. Does this PR affect any open issues?(Y/N) and add issue references (e.g. "fix #123", "re #123".):

• N
• Y

feat: bump kcl lib to v0.7.0-alpha.1 and impl path selectors for the run API.

2. What is the scope of this PR (e.g. component or file name):

• pkg/kcl/opt.go
• pkg/spec/gpyrpc/gpyrpc.proto
• scripts/kclvm.go

3. Provide a description of the PR(e.g. more details, effects, motivations or doc link):

• Affects user behaviors
• Contains syntax changes
• Contains variable changes
• Contains experimental features
• Performance regression: Consumes more CPU
• Performance regression: Consumes more Memory
• Other

4. Are there any breaking changes?(Y/N) and describe the breaking changes(e.g. more details, motivations or doc link):

• N
• Y

5. Are there test cases for these changes?(Y/N) select and add more details, references or doc links:

• Unit test
• Integration test
• Benchmark (add benchmark stats below)
• Manual test (add detailed scripts or steps below)
• Other

[coveralls]

Pull Request Test Coverage Report for Build 6662431203

• 2 of 9 (22.22%) changed or added relevant lines in 2 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage decreased (-0.1%) to 65.891%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
pkg/kcl/opt.go	1	8	12.5%

Totals
Change from base Build 6638329725:	-0.1%
Covered Lines:	2635
Relevant Lines:	3999

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💛 - Coveralls

[zong-zhe]

LGTM