AE: Fix passthrough of E-AC-3 streams with less than 6 blocks per frame

High-bitrate E-AC-3 streams contain less than 6 audio blocks per frame.
Accordingly, this requires more E-AC-3 frames per a second of audio. In
IEC 61937-3:2007 this is achieved by inserting multiple (maximum of 6)
E-AC-3 frames into a single IEC 61937 burst.

This is missing from the code despite there being checks for the audio
block count in the E-AC-3 frame in AEStreamInfo.

Fix that by adding an E-AC-3 concatenator in AEBitStreamPacker.
AE: Fix incorrect output frame rate of E-AC-3 passthrough

E-AC-3 passthrough requires an IEC 60958 frame rate of 4 times the
encoded sample rate as per the IEC 61937-3:2007 specification.

Currently AEStreamInfo uses a hardcoded value of 192kHz, causing streams
with a sample rate of less than 48kHz to be played back at an abnormally
fast rate.

Fix AEStreamInfo to use the correct value.
dvdplayer: Disallow passthrough for unsupported low E-AC-3 sample rates

E-AC-3 supports standard sample rates 32kHz, 44.1kHz, 48kHz and the
reduced rates 16kHz, 22.05kHz, and 24kHz. Only 32kHz, 44.1kHz and 48kHz
are mentioned in the IEC 61937-3:2007 specification as E-AC-3 sample
rates for passthrough. Of those, 32kHz passthrough results in an IEC
60958 frame rate of 128kHz which is not supported by HDMI.

Limit passthrough to the HDMI supported rates to avoid audio playback
failure.
dvdplayer: Fix m_streaminfo updates from passthrough codec

Use the GetEncodedSampleRate() method instead of GetSampleRate() to
populate m_streaminfo, since the latter returns the passthrough frame
rate which is not relevant in the context of m_streaminfo.

Also, do not overwrite channel count and sample rate with zero after
opening a passthrough codec, instead keep the demuxer values. These are
only used internally for codec selection.

This fixes some unnecessary back-and-forth checking between regular
and passthrough codec when opening a stream due to wrongly detected
sample rate changes in certain situations.
paplayer/DVDPlayerCodec: cosmetics - remove double-semicolons
paplayer/DVDPlayerCodec: prevent multiple Init() runs with the same arguments, do DeInit() on instance reuse, do more cleanup in DeInit() - fixes playback of DTS-WAV via paplayer (closes #14405)