Sqlmath

- npm publish v2021.10.20
- update to jslint v2021.10.20
- refactor - replace nodejs-buffer-api-calls with DataView / TextDecoder / TextEncoder

- revamp - update to jslint_ci.sh from 2020.10.2

- add sql-function slr_ohlcv() with tests
- update file jslint_ci.sh with chorish shell-functions
- update function dbOpenAsync with ability to create thread-pool with multiple connections

- merge files in sqlite-autoconf-3360000 into sqlite3.c, sqlite3_ext.c, sqlite3_shell.c

- add functions dbGetLastBlob, dbTableInsertAsync
- merge file sqlmath_napi.c into sqlmath.c
- merge file test.js into sqlmath.mjs
- migrate repo to https://github.com/sqlmath/sqlmath
- migrate to esm and rename sqlmath.js to sqlmath.mjs

- merge files sqlmath.h and sqlmath_napi.c into sqlmath.c
- add async functions dbOpen, dbExec, dbClose
- inline function sqlite3_extension_functions_init without auto_extension
- disable warnings for all targets except sqlmath.c and sqlmath_napi.c
- fix build for darwin and win32.