basic: for PutData()/GetData() actually 32bits should be enough

Change-Id: I3c605a1e5b46d262ff557dac280b15136467b906
tools: allow 64-bit positions on SvLockBytes

Bump stream positions to 64 bits on:

SvLockBytes::ReadAt()
SvLockBytes::WriteAt()
SvAsyncLockBytes::m_nSize
SvOpenLockBytes::Seek()
SvOpenLockBytes::Tell()
SvOutputStreamOpenLockBytes::m_nPosition
OInputStreamHelper::m_nActPos

Change-Id: Ica3b674e0ab23a756260a51475e97a5396ecdddb
tools: support 64-bit file positions in SvStream

Bump stream positions to 64 bits on:

SvLockBytes::SetSize()
SvStream::SeekPos()
SvStream::SetSize()
SvStream::SetStreamSize()
SvStream::Seek()
SvStream::SeekRel()
SvStream::Tell()
SvStream::remainingSize()
SvStream::nActPos
SvStream::nBufFilePos

Change-Id: I0521fd60d31d1a33e5634cbf51dd42edc46ad919
TODO: adapt callers of Seek()/SeekRel()/Tell()/remainingSize()
tools: remove unused SvStream::IsA() and associated ID_*STREAM macros

Change-Id: I6ed0991fb5bd1d5085ee1b93323b57b1afc69860
remove weird unused CustomAnimationTriggerEntryItem::IsA()

Change-Id: I57c4920ed8e4ecbe90a314ce69e5abc292763347