update parse STRICT tables

[parkma99]

close #898

What changes are included in this PR?

add STRICT keyword.
add some to enable parse STRICT table.
add one test about STRICT table.

[alamb]

LGTM -- thank you @parkma99

[coveralls]

Pull Request Test Coverage Report for Build 5357623493

• 14 of 16 (87.5%) changed or added relevant lines in 4 files are covered.
• 2 unchanged lines in 2 files lost coverage.
• Overall coverage increased (+0.001%) to 86.92%

---

Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
src/ast/helpers/stmt_create_table.rs	5	6	83.33%
src/parser.rs	1	2	50.0%

Files with Coverage Reduction	New Missed Lines	%
src/ast/mod.rs	1	78.25%
src/parser.rs	1	82.92%

Totals
Change from base Build 5347302069:	0.001%
Covered Lines:	15058
Relevant Lines:	17324

---

💛 - Coveralls