Make BMediaRecorder public

* Fills a functionality lack of the classic media_kit.

BMediaRecorder: Solve possible problem with node references

* Since the BMediaRecorder have an it's own estabilished policy
relating releasing the producer node we will not interfere with
it except when we are controlled from Cortex.

BMediaRecorder: Return the actual accepted format

* Allow SoundRecorder to record without the need of a system mixer
in front, for the nodes I can test.
* Solve other format related problems.

BMediaRecorder: Fix unneeded argument and error check

BMediaRecorder: Rework to allow external connections

* This required to review various parts of the code, and
isn't probably still perfect. The main problem was an attributes
hell where redondance created a lot of problems, all this data
is now controlled mostly by the node.
* Header indentation changes needed too.

BMediaRecorder: fix a few issues, fix style, remove unused SoundUtils

* Use the preferred time source (GetTimeSource) for the node
* Fix node releasing when creating the connection fails
* Add virtual slots and padding
* Refactor _Connect method

Replace SoundCounsumer with modified BMediaRecorder.

Signed-off-by: Hamish Morrison <hamishm53@gmail.com>

BMediaRecorder: fix a few issues, fix style, remove unused SoundUtils

* Use the preferred time source (GetTimeSource) for the node
* Fix node releasing when creating the connection fails
* Add virtual slots and padding
* Refactor _Connect method

Replace SoundCounsumer with modified BMediaRecorder.

Signed-off-by: Hamish Morrison <hamishm53@gmail.com>