klog should accept an optional enum in InitLogger and defaults reading from env if not provided

[nadeemkhedr]

Find the code here:

utils-go/klog/klog.go

Line 14 in d4df2c8

switch strings.ToUpper(os.Getenv("LOG_LEVEL")) {

Goal: is to add an enum that InitLogger would accept and would set the logging level from it, if an enum is not provided, keep the logic as-is (read it from env var)

This will make it easy for other services to provide the logging level especially if they don't have .env setup yet