Simplified implementations of last insert id and quote

[yitam]

The name column of sys.sequences is of type sysname, which is functionally equivalent to nvarchar(128).

[codecov]

Codecov Report

Merging #1251 (e9ca8a6) into dev (fcd7b64) will decrease coverage by 0.01%.
The diff coverage is n/a.

❗ Current head e9ca8a6 differs from pull request most recent head 591021d. Consider uploading reports for the commit 591021d to get more accurate results

@@            Coverage Diff             @@
##              dev    #1251      +/-   ##
==========================================
- Coverage   82.86%   82.84%   -0.02%     
==========================================
  Files          24       24              
  Lines        7236     7222      -14     
==========================================
- Hits         5996     5983      -13     
+ Misses       1240     1239       -1     

Impacted Files	Coverage Δ
.../x86/php-8.0.3-src/ext/sqlsrv/shared/core_init.cpp
.../vs16/x86/php-8.0.3-src/ext/pdo_sqlsrv/pdo_dbh.cpp
.../x86/php-8.0.3-src/ext/sqlsrv/shared/core_sqlsrv.h
.../phpdev/vs16/x86/php-8.0.3-src/ext/sqlsrv/init.cpp
.../x86/php-8.0.3-src/ext/sqlsrv/shared/core_stmt.cpp
.../php-8.0.3-src/ext/pdo_sqlsrv/shared/core_util.cpp
...vs16/x86/php-8.0.3-src/ext/pdo_sqlsrv/pdo_init.cpp
.../phpdev/vs16/x86/php-8.0.3-src/ext/sqlsrv/util.cpp
...16/x86/php-8.0.3-src/ext/pdo_sqlsrv/pdo_parser.cpp
.../php-8.0.3-src/ext/pdo_sqlsrv/shared/core_sqlsrv.h
... and 38 more