[6.0] Global.deserializeTo[] method

[kushti]

This PR is introducing new Global.deserializeRaw method which is allowing to deserialize a typed object from underlying bytes. It is compatible (has roundtrip with) Global.serialize from #989 .

example:

{
     val src = getVar[Coll[Short]](21).get
     val ba = serialize(src)
     val restored = deserializeTo[Coll[Short]](ba)
     src == restored
}