TraceId.getLowerLong returns idHi

[Oberon00]

See the following code:

opentelemetry-java/api/src/main/java/io/opentelemetry/trace/TraceId.java

Lines 213 to 214 in 9afb1e4

	public long getLowerLong() {
	return (idHi < 0) ? -idHi : idHi;

It seems this should use idLo instead of idHi to match the method name.

[thisthat]

I think the problem is not the implementation but the naming of the method. My suggestion is to rename it using the keyword leftmost/rightmost following the suggestion of @c24t in PR 331

[bogdandrutu]

This is closed and the new method was added getTraceRandomPart