Moved field encoding into LittleEndianEncoding (it is an algorithm parameter)
Fixed curve name in tests, fixed invalid test
Simplified creation of EdDSA specs
Implemented ref10 scalarMultiply()
Attempt to test new scalarMultiply(), test fails in strange location

When the two sections starting with new GroupElement() are swapped, it passes.
Testing use of scalarMultiply() for signing, causes signing test to fail