libxmp release 4.7.0

libxmp release 4.6.3

release 4.6.2

Set 4.6.1 release date in changelogs.

Closes #768

set 4.6.0 release date in changelogs.

include mmy email in docs/CREDITS

Update lite Changelog

Signed-off-by: Claudio Matsuoka <cmatsuoka@gmail.com>

Initialize extra sample data for IT sustain loop

Signed-off-by: Claudio Matsuoka <cmatsuoka@gmail.com>

Fix S3M X80 pan decoding

Signed-off-by: Claudio Matsuoka <cmatsuoka@gmail.com>

Update changelog

Signed-off-by: Claudio Matsuoka <cmatsuoka@gmail.com>