Backtester: USD tracking (#818)

* Initial concept for creating price tracking pairs

* Completes coverage, even with a slow test

* I dont know what point to hook this stuff up

* Bit of a broken way of handling tracking pairs

* Correctly calculates USD rates against all currencies

* Removes dependency on GCT config

* Failed currency statistics redesign

* initial Update chart to use highcharts

* Minor changes to stats

* Creats funding stats to handle the stat calculations. Needs more work

* tracks USD snapshots and BREAKS THINGS FURTHER

* Fixed!

* Adds ratio calculations and such, but its WRONG. do it at totals level dummy

* End of day basic lint

* Remaining lints

* USD totals statistics

* Minor panic fixes

* Printing of funding stats, but its bad

* Properly calculates overall benchmark, moves funding stat output

* Adds some template charge, removes duplicate fields

* New charts!

* Darkcharts. funding protection when disabled

* Now works with usd tracking/funding disabled!

* Attempting to only show working stats based on settings.

* Spruces up the goose/reporting

* Completes report HTML rendering

* lint and test fixes

* funding statistics testing

* slightly more test coverage

* Test coverage

* Initial documentation

* Fixes tests

* Database testing and rendering improvements and breakages

* report and cmd rendering, linting. fix comma output. rm gct cfg

* PR mode 🎉 Path field, config builder support,testing,linting,docs

* minor calculation improvement

* Secret lint that did not show up locally

* Disable USD tracking for example configs

* ShazNitNoScope

* Forgotten errors

* ""

* literally Logarithmically logically renders the date 👀

* Fixes typos, fixes parallel test, fixes chart gui and exporting

log/logger_setup.go

@@ -33,8 +33,8 @@ func getWriters(s *SubLoggerConfig) io.Writer {
 }
 
 // GenDefaultSettings return struct with known sane/working logger settings
-func GenDefaultSettings() (log Config) {
-	log = Config{
+func GenDefaultSettings() Config {
+	return Config{
 		Enabled: convert.BoolPtr(true),
 		SubLoggerConfig: SubLoggerConfig{
 			Level:  "INFO|DEBUG|WARN|ERROR",
@@ -57,7 +57,6 @@ func GenDefaultSettings() (log Config) {
 			},
 		},
 	}
-	return
 }
 
 func configureSubLogger(logger, levels string, output io.Writer) error {