Add getUncompressedForm to ECC Point and ....

Reorder curve
Rename P-256 to P_256 and P-192 to P_192
Rename curveSpecs to curveDomainSpecs
Add 'name' and 'size' property to curve spec
Add getUncompressedForm() to Affine and Projective point
Do not throw anymore simple string anymore, always UCryptException
Add some doc to UCrypt.utils
Reorder test
Add little  getUncompressedForm test