feat(stonedb): To support gcc 7.5 or higher and fix up error(#11)(#12)

[RingsC]

1: To support GCC 7.5 or higher.
2: To fix up some compilation errors.
3: To support -DWITH_ROCKSDB and -DWITH_MARISA to sepcify the directories where rocksdb and marisa installed.

This will also fix issue: #15 to specify the directories of third-party libs.

Issue Number: close #12 and one series of #11

Tests Check List

• Unit test
• Integration test
• Manual test (add detailed scripts or steps below)
• No code

Changelog

• New Feature
• Bug Fix
• Improvement
• Performance Improvement
• Build/Testing/CI/CD
• Documentation
• Not for changelog (changelog entry is not required)

Documentation

• Affects user behaviors
• Contains syntax changes
• Contains variable changes
• Contains experimental features

[mergify]

This pull request's title is not fulfill the requirements. @RingsC please update it 👇.

Valid format:

fix(vc): fix sth..... (#3306)
  ^         ^---------^  ^----^
  |         |            |
  |         +            +-> you issue id.
  |         |
  |         +-> Summary in present tense.
  |
  +-------> Type: feat, fix, docs, workflow, style, refactor, test, website, chore

Valid types:

• feat: new feature for stonedb
• fix: bug fix for stonedb
• docs: changes to the documentation
• workflow: ci/cd in .github
• refactor: refactoring production code, eg. renaming a variable
• style: formatting, missing semi colons, etc; no production code change
• test: adding missing tests, refactoring tests; no production code change
• website
• chore: updating grunt tasks etc; no production code change

[mergify]

Thanks for the contribution!
I have applied any labels matching special text in your PR Changelog.

Please review the labels and make any necessary changes.

[adofsauron]

LGTM

[andyli029]

LGTM.