ch.Init update

changed chdata.Init to load entire data rather than one row at a time…

… when building GData. Means don't need to run CountLines or have issues when return dimension is random

Added functions to parser

Added nowDate() and nowTime() to parser
Added error checking to chData.Init()

added "exist" function to parser

v0.2.39

added "exist" function to parser.go

updated utilities

v0.2.38

upgrade utilities

upgrade dependencies, go 1.22

v0.2.37

upgrade to chutils v1.1.34

bug fixes

added abs function to parser.go

bug fix in data.go, pow function wasn't incrementing indices

changed gdata.go AppendC to do its best to convert to float64

more robust comparisons in parser

v0.2.35

More robust comparisons in parser.go -- resolving type conflicts

Bug Fix

fixed bug in parser.go where if a function was part of a multi-minus …

…equation, it would lose the minus sign.  E.g.

a - log(b) - log(c) - log(d)

would become
 a + log(b) + log(c) + log(d)

New parser functions, modified ReInit

added string functions to parser:

- substr
- strPos
- strCount
- strLen

modified gdata.go func reInit to only
process those fields with supplied
FTypes.

added functions to parser

added date functions to parser:

toFirstDayOfMonth
day
month
year
dateDiff

also,
minE and maxE - pairwise min/max