Orientation values need to be updated

[jakebeal]

The SBOL_INLINE and SBOL_REVERSE_COMPLEMENT constants were changed between specification 3.0.0 and 3.0.1, to use sequence ontology terms. The old terms are still accepted as dispreferred alternates. To track this change in the specification, this library should:

• Switch the constants to the new SO values
• Make "alternate" constants for the old values
• Make sure validation rules are updated to accept both values
• Automatically upgrade features supplied with the old value to use the new value
• Add tests for both values

[jakebeal]

Actually, I see that the other terms are already in there as well, as SO_FORWARD and SO_REVERSE, so maybe this is more a matter of deprecation or documentation to try to point people to using the preferred term in some way?