[Hackweek] Added feature flags to SDK

[mitsuhiko]

This adds basic support for the hackweek feature flag API.

Example:

import sentry_sdk

sentry_sdk.init(_experiments={"feature_flags_enabled": True})
sentry_sdk.wait_until_ready()

with sentry_sdk.configure_scope() as scope:
    scope.set_tag("isSentryDev", "true")

profiling_enabled = sentry_sdk.is_feature_flag_enabled("@@profilingEnabled")
access_to_profiling = sentry_sdk.is_feature_flag_enabled("@@accessToProfiling")
sample_rate = None

if access_to_profiling:
    info = sentry_sdk.get_feature_flag_info("@@tracesSampleRate")
    if info is not None:
        sample_rate = info.result

print(f"{profiling_enabled=}")
print(f"{access_to_profiling=}")
print(f"{sample_rate=}")

[github-actions[bot]]

This pull request has gone three weeks without activity. In another week, I will close it.

But! If you comment or otherwise update it, I will reset the clock, and if you label it Status: Backlog or Status: In Progress, I will leave it alone ... forever!

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"A weed is but an unloved flower." ― Ella Wheeler Wilcox 🥀

[getsantry[bot]]

This issue has gone three weeks without activity. In another week, I will close it.

But! If you comment or otherwise update it, I will reset the clock, and if you remove the label Waiting for: Community, I will leave it alone ... forever!

---

"A weed is but an unloved flower." ― Ella Wheeler Wilcox 🥀

[antonpirker]

Closing this, because it will not land anytime soon.