gh-38453: Enhance augment method in Matrix_gf2e
This pull request modified `augment()` method defined in
`matrix_gf2e_dense` to allow vectors to be augmented.
See issue: #36761
Earlier it accepted only matrix of type `matrix_gf2e_dense`.
I removed that dependency.
Added check for vector.
If vector then try to change the base ring of vector to self.base_ring
and create matrix of type `matrix_gf2e_dense` from that vector
Rest of the flow remains same.
The parent class Matrix1 defined generic augment() method which allowed
vectors to be augmented but `matrix_gf2e_dense` provides new definition
of augment() and do not provide support for vectors.
For consistency it would be good to have vector augmentation in this
class too.
Fixes #36761
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URL: https://github.com/sagemath/sage/pull/38453
Reported by: Animesh Shree
Reviewer(s): Travis Scrimshaw
