Feat(compiler-base): reuse 'rustc_span' for code location.

[zong-zhe]

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

• N
• Y

issue #115

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

kclvm/compiler_base/3rdparty/rustc_span
kclvm/compiler_base/3rdparty/rustc_data_structures
kclvm/compiler_base/span

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

1. 'Compiler-Base' decides to reuse 'rustc_span' to describe code snippets and the location of code elements in the file.
2. 'rustc_span' depends on 'rustc_data_structure', so we need to copy the code of these two parts at the same time.
3. copy -r '3rdparty/rustc_span' and '3rdparty/rustc_data_structure' from 'kclvm' to 'kclvm/compiler_base'.
4. add 'span' in 'kclvm/compiler_base' to pub use some parts of '3rdparty/rustc_span'.

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

At present, the ''rustc_span'' and 'rustc_data_structure' are not used and tested separately. In the future, the methods will be individually provided according to the parts used, and tests will be provided together.

6. Release note

Please refer to Release Notes Language Style Guide to write a quality release note.

None

[Peefy]

LGTM

[He1pa]

LGTM

[coveralls]

Pull Request Test Coverage Report for Build 2858351949

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage decreased (-0.6%) to 59.021%

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Totals
Change from base Build 2858271924:	-0.6%
Covered Lines:	21364
Relevant Lines:	36197

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💛 - Coveralls

[ldxdl]

LGTM