[ADAM-785] Add support for all numeric array (TYPE=B) tags, fixes #785

[jfeala]

Please review carefully, I'm a Scala beginner! Advice welcome for better, more Scala-ish patterns

• Extends Attribute model and AttributeUtils.convertSAMTagAndValue to cover the 7 numeric array types [cCsSiIf] described in SAM spec
• Updates tests to use TextTagCodec used natively by samtools parser
• Adds a small SAM file with all tag types and tests with loadAlignments

[AmplabJenkins]

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[fnothaft]

Instead of checking for a null String here, I would probably make tagArrayString be Option[String] and then change this line to be a fold:

val fullTagString = tagArrayString.fold(tagTypeString)(arrayString => "%s:%s".format(tagTypeString, arrayString))

[fnothaft]

Generally looks good to me, other than the small nit above. Thanks for the contribution @jfeala!

[massie]

Looks good to me, too. Thanks for the contribution, Jake. Appreciated.

[jfeala]

Thanks, guys. @fnothaft I updated that line, thanks for the suggestion.

Let me know if you want me to squash the extra commit before merge

[AmplabJenkins]

Test PASSed.
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[fnothaft]

Ping for anyone else who wants to review; if no one else wants to review, I will merge this noon PST tomorrow.

@jfeala no worries on squashing; I can take care of that when merging.

[massie]

👍

[massie]

Thanks, @jfeala !

[massie]

Merged manually after rebase.