Sqlmath

- jslint - Update jslint to v2023.8.20.
- chart - Add technical-chart tradebot_technical_sinefit.
- sqlmath - bugfix - Fix buffer-overflow in c-function sql3_win_sinefit2_step().
- sqlmath - Rename c-struct Vector99 to Doublewin.
- sqlmath - Add sql-function fmod().
- sqlmath - Rename sql-functions xxx_cosfit_xxx() to xxx_sinefit_xxx().
- sqlmath - Revamp sql-function win_cosfit2() to 1) find frequency cww from dft, and then 2) find phase cpp from linear equation y=b*cos(w*t)+c*sin(w*t).
- sqlmath - Update sql-function win_cosfit2() to use sine() instead of cosine() for better phase-continuity of initial guesses of phase at cpp=0.
- sqlmath - Update sql-agg-function stdev() to aggregate over running-window.
- sqlmath - Update sql-function win_cosfit2_refitlast() to be able to update cosine-fit as well.
- sqlmath - Merge sql-functions win_cosfit2_predict(), win_cosfit2_extract() into sql-function cosfit_extract().
- sqlmath - Add c-helper-functions doubleAbs(), doubleMax(), doubleMin().
- sqlmath - merge c-struct WinCosfitInternal, WinCosfitResult into c-struct WinCosfit.
- sqlmath - Update sql-functions win_cosfit2(), win_emax(), win_quantilex() to move variable-length arguments to last position.
- sqlmath - Update sql-function win_cosfit2() with additional argument modeNoCsf.
- sqlmath - Merge sql-functions win_slr2(), win_slrcos2() into sql-function win_cosfit2().
- sqlmath - Streamline sql-function win_slr2_step() to only update last datapoint.
- sqlmath - Update sql-function win_quantile2(), win_slr2() to input/output doublearray instead of json for better performance.
- sqlmath - Add test-file test_data_cosfit.csv.
- sqlmath - Add sql-function win_slrcos2().
- sqlmath - Update sql-function win_slr2() to input/output doublearray instead of json for better performance.
- sqlmath - Rename sql-functions jsonfromdoublearray() to doublearray_jsonto(), jsontodoublearray() to doublearray_jsonfrom().
- sqlmath - Remove unused sql-functions:
btobase64(), btotext()
jenks_blob(), jenks_concat(), jenks_json()
vec_concat()
- betadog - Migrate sql-functions matrix2d_concat() from sqlmath to betadog.
- sqlmath - Add sql-function win_slr2_step() to incrementally step from last slr-state.

- sqlmath - Update sql-function win_slr2() to additionally return predicted y-value and rmse.
- betadog - Migrate market-indicator from spy to spx.

- sqlmath - fix broken interpolation in sql-function quantile().
- sqlmath - Add sql-function win_quantile1(), win_quantile2().
- sqlmath - Update sql-function win_slr2() to be vectorized.
- sqlmath - Add sql-function win_ema2().
- betadog - Add feature xema_xxx into ml model.
- sqlmath - Add sql-function win_slr().
- sqlmath - Add sql-function vec_win_slr_updatelast().
- sqlmath - Add sql-function vec_win_slr().
- sqlmath - Revamp struct Vector99.
- sqlmath - Add sql-function vec_concat().
- sqlmath - Add sql-function castrealornull().

- ci - auto-update python version
- jslint - Add grammar for "export async function ...".
- sqlite - Remove hacky sqlite-extension-function.
- python - Migrate python-driver from pysqlite3 to cpython.
- jslint - Add grammar for regexp-named-capture-group and regexp-named-backreference.
- betadog - Reconcile differences with betadog.
- python - Successfully published first pypi package version sqlmathv0.0.5.
- ci - Rename shell-function shRawLibFetch() to shRollupFetch().
- sqlmath - migrate build-ext from python to nodejs with parallel compile
- sqlmath - add python c-extension
- sqlmath - streamline macros SQLITE3_C2, SQLITE_H2, SQLITE3EXT_H2, SQLMATH_C2 in prepartion for python-c-extension
- sqlmath - add file zlib_rollup.c so sqlmath can be compiled without external zlib-dependency
- sqlmath - add sql-function avg_ema()
- sqlmath - add sql-function fill_forward()

- sqlmath - rename sql-function percentile() to quantile()
- ci - add shell-function shCiPreCustom2() to setup python in custom-ci
- ci - remove mandatory python ci
- sqlmath - update sql-function percentile() with off-by-one bugfix
- sqlmath - remove file sqlmath_fann.c
- sqlmath - add file sqlmath_fann.c

- sqlmath - move c-function str99JsonAppendText() from file sqlmath_base.c to sqlite3.c
- sqlmath - merge file sqlite3_ext.c into sqlite3.c
- sqlmath - streamline str99 c-code
- sqlmath - add sql-functions jenks_concat(kk, col1, col2, ...), jenks_json(kk, jsonArray)
- chart - bugfix - fix special-character in col-name being sql-injected