[mysql] implement semantic conventions

[naseemkullah]

Which problem is this PR solving?

partially #116

Short description of the changes

Using the semantic-conventions package and following specification. A function getDbStatement was extracted for building the statement by formatting sql with values.

[dyladan]

Thanks for this!

[codecov]

Codecov Report

Merging #183 into master will decrease coverage by 0.96%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master     #183      +/-   ##
==========================================
- Coverage   96.18%   95.21%   -0.97%     
==========================================
  Files          81       92      +11     
  Lines        4167     4724     +557     
  Branches      423      488      +65     
==========================================
+ Hits         4008     4498     +490     
- Misses        159      226      +67     

Impacted Files	Coverage Δ
node/opentelemetry-plugin-mysql/src/mysql.ts	95.61% <0.00%> (-0.26%)	⬇️
node/opentelemetry-plugin-mysql/test/mysql.test.ts	98.20% <0.00%> (-0.02%)	⬇️
node/opentelemetry-plugin-mysql/src/enums.ts
...in-dns/test/integrations/dnspromise-lookup.test.ts	91.37% <0.00%> (ø)
node/opentelemetry-plugin-dns/src/utils.ts	69.00% <0.00%> (ø)
.../opentelemetry-plugin-dns/test/utils/assertSpan.ts	100.00% <0.00%> (ø)
...elemetry-plugin-dns/test/functionals/utils.test.ts	98.82% <0.00%> (ø)
...ry-plugin-dns/test/integrations/dns-lookup.test.ts	92.50% <0.00%> (ø)
node/opentelemetry-plugin-dns/test/utils/utils.ts	33.33% <0.00%> (ø)
...entelemetry-plugin-dns/src/enums/AttributeNames.ts	100.00% <0.00%> (ø)
... and 6 more