When a frame is dropped, the previous non-dropped frame is considered to be repeated, but the strip chart would compute new cached frame data for it, causing performance to be unusably slow at high frame rate data gathering even when most frames are skipped
This makes performance remotely usable in that situation
As workaround for https://gitlab.gnome.org/GNOME/gtk/-/merge_requests/2029, we manually create a GtkFlowBoxChild instance and attach the label to it and increase its reference count so it it not prematurely destroyed when removed from the GtkFlowBox, causing the UI to segfault.
Menus would only update properly if there was a strip chart open that would cause the PStatView to be updated
Calling `check_update()` in `new_collector()` doesn't work properly because the views haven't been updated there yet; calling `do_update()` there does work around it but I think the better fix is just to make sure we always update the view so that the `check_update()` (which is also called by `idle()`) works properly
This is more idiomatic, simplifies the code, makes it easier to port to eg. HPy later on, and makes it easier to use the limited ABI (where it can be optimized to a tail call) later on
A polyfill is provided for compatibility with Python versions 3.8 and 3.9
This can be used to disable certain extensions from being loaded via Assimp
Also makes the `get_additional_extensions()` method a bit more efficient by having it avoid string concatenation, using a temporary buffer instead
These hashes are used in various places in the Panda codebase (for integrity checks, not for crypto), so using an internal implementation allows retaining this functionality when building Panda without OpenSSL.
Based on the following public domain implementation:
https://github.com/B-Con/crypto-algorithms
It changes the following things:
* Changes the counts in the PStatFrameData from uint16 to uint32, since I was hitting the value limit in some heavy frames with Python profiling enabled - no good reason for this limitation, so this allows removing it later
* Adds a T_expire_thread message, which I can use later to fix#450
These features are not used on the client side, but will be used on master. Adding these changes here now makes it possible to use a master client with a 1.10.13 version of the server (can be useful if you can't compile Panda on the host).