Add version logging to modules

CI Improvements

Replace Travis-CI with Github Actions for build

update README.md for MS-RDPEAI

bump version to v0.5

README: fix typo

Closes: #45

Switch LICENSE to LGPLv2.1

Closes: #36

use fd -1 not 0 for invalid fd

fix for delay in sink

bump version to v0.4

source: move pa_memblock_new to data_get

Bump version to v0.3

Fix some typos in source, change some logging to match sink

Fix segfault when socket names not given via env #19

snprintf requires malloc before copying strings. I didn't do enough test the case
when socket names were not given via environment variable.

README: sync to the wiki

CentOS 7.5 or later requires pulse modules to be built with distro's RPM
source.

Remove xrdp dependency

and remove CHANSRV, use the shorter name

now this module no longer depends on xrdp headers.

build with distro's pulseaudio source

use config_ac.h for our config.h

as xrdp already uses config_ac.h. To be consistent, let's use
config_ac.h rather than module-config.h.

correct travis badge branch

introduce travis build test