set LogFormat to full on RxPlayer's debug mode

The `__RX_PLAYER_DEBUG_MODE__` boolean
--------------------------------------

The RxPlayer has a hidden feature where if a global
`__RX_PLAYER_DEBUG_MODE__` boolean is declared globally and set to
`true` before its code its imported, it will output debug logs.

This was initially added as a mean to facilitate debugging, especially
while relying on our [RxPaired](https://github.com/canalplus/RxPaired)
inspector.

Though we now end up communicating that trick to more people to
facilitate quick checks:

  - applications relying on the RxPlayer which seem to have a fairly
    simple issue can set this to very quickly communicate us logs without
    having to understand our debug tools nor perform re-builds on their
    side.

  - in some scenarios, we even had users (though still in a professional
    context) wanting us to check why the player behaved the way it did
    on their devices.

    As those were technical people, we had no issue just telling them to
    set a boolean in the console and communicate to us the outputted logs.

Problems with it
----------------

Logs are then generally just copy-pasted from e.g. Chrome's inspector,
and as such have a lot of noise we don't need (call stack info, object
structure from their own code, CORS from their applications etc.), no
timestamp, and without a clear boundary between log lines vs line break
in a single log.

Thus, it's less convenient to us than relying on `RxPaired` or than
re-building with both `LogLevel = "DEBUG"` **AND** `LogFormat =
"full"`.

Proposal
--------

So I here propose that `RX_PLAYER_DEBUG_MODE__` also set `LogFormat` to
`"full"`.

This will add timestamps + a namespace to all new logs produced by the
RxPlayer, then facilitating our exploitation and opening the way for
easier import into RxPaired's post-debugger mode.

Though to keep in mind that this will then always lead to `RxPaired`'s
"double formatting" problem as exposed in canalplus/RxPaired#22.

As such canalplus/RxPaired#22 or a similar
work-around is a requirement before merging this.

_Note that there are other solutions to fix this, like creating two
global booleans, e.g. one used by RxPaired and one for users, but here I
ended up preferring the ugly double formatting work-around as a lesser
evil._

src/index.ts

@@ -56,7 +56,7 @@ Player.addFeatures([
   HTML_SRT_PARSER,
 ]);
 if (isDebugModeEnabled()) {
-  logger.setLevel("DEBUG", "standard");
+  logger.setLevel("DEBUG", "full");
 } else if ((__ENVIRONMENT__.CURRENT_ENV as number) === (__ENVIRONMENT__.DEV as number)) {
   logger.setLevel(__LOGGER_LEVEL__.CURRENT_LEVEL, "standard");
 }

src/minimal.ts

@@ -29,7 +29,7 @@ import Player from "./main_thread/api";
 patchWebkitSourceBuffer();
 
 if (isDebugModeEnabled()) {
-  logger.setLevel("DEBUG", "standard");
+  logger.setLevel("DEBUG", "full");
 } else if ((__ENVIRONMENT__.CURRENT_ENV as number) === (__ENVIRONMENT__.DEV as number)) {
   logger.setLevel(__LOGGER_LEVEL__.CURRENT_LEVEL, "standard");
 }