+ ensure that none of the test runs into a segfault by asserting on malloc return paths that propagate

* feat: Support modifying attachments after init

Moves the attachments to the scope, and adds `sentry_add_attachment` and
`sentry_remove_attachment` and wstr variants that modify this attachment
list after calling init. Attachments are identified by their path.

* feat: pass added and removed attachments to the backend

* add `_n`

* scope api

* merge & apply attachments

* update note on attachments

* integration tests

* Update README.md

* Update CHANGELOG.md

* Apply suggestions from code review

Co-authored-by: Mischan Toosarani-Hausberger <[email protected]>

* remove ticks

* Apply more suggestions from code review

* De-duplicate envelope attachment code

- remove sentry__apply_attachments_to_envelope
- add sentry__envelope_add_attachments
- reuse sentry__envelope_add_attachment

* sentry_add_attachment -> sentry_add_attachment_path

* Update CHANGELOG.md

* fixup: missed rename

* fixup: another missed rename

* remove_attachmentw() without _path

* revise sentry_attach_file & removal

* fix windows

* Update CHANGELOG.md

* clean up

* fix attachments_add_remove on windows

* Update CHANGELOG.md & NOTE on attachments

* Update external/crashpad

---------

Co-authored-by: Arpad Borsos <[email protected]>
Co-authored-by: Mischan Toosarani-Hausberger <[email protected]>

* test: define individual unit tests for CTEST

* chore: add SENTRY_CTEST_INDIVIDUAL option

* rename the aggregate test target to "unit-tests"

* feat: add sentry_attachment_set_content_type()

* drop content_type_owned

* add _n

* update breakpad + lss

* CHANGELOG.md

* breakpad post-merge

* fix: xbox compilation

* replace checks of _GAMING_XBOX_SCARLETT with SENTRY_PLATFORM_XBOX_SCARLETT

* test: skip tests for missing features

* feat: Support attaching bytes

* fix: move to_crashpad_attachment out of extern C

> warning C4190: 'to_crashpad_attachment' has C-linkage specified,
> but returns UDT 'crashpad::Attachment' which is incompatible with C

* fix: lint

* fix: unreachable

* test: integration

* test: rename

* test: attaching bytes to crashpad is supported on win32 and linux

* crashpad: dump byte attachments on disk

* fix: windows

* let crashpad ensure unique file names

* fix sentry__attachment_from_buffer

* clean up unused uuid

* Update external/crashpad

* alternative: ensure unique file in sentry_backend_crashpad

* clean up

* clean up more

* switch to std::filesystem

* fix leaks in backends

* add sentry__attachment_from_path for convenience and to reduce diff

* fix self-review findings

* revert accidental ws changes

* fix attachment_clone

type & content_type are passed separately and content_type is cloned in
sentry__attachments_add()

* unit-testable sentry__path_unique() to back the "-N.tar.gz" claims

* include <string>

* ref: unique paths for byte attachments

* add note about unique file names with crashpad

* add missing null checks for screenshots

* attachment_clone: add missing error handling

* add note and missing test for buffer attachment comparison

* Bump external/crashpad

* Update external/crashpad

* attachment_eq: clarify with a comment

* document behavior regarding duplicate attachments

* sentry__attachments_remove: replace attachment_eq with ptr cmp

* feat: add `sentry_attachment_set_filename()`

* add missing null check

* crashpad: adapt ensure_unique_path

* Update CHANGELOG.md
* move static sdk identification + versioning below platform defs in order to reuse the platform defs rather than external ones.

* chore: enable PS stack unwinding and module resolution

* symbolize stacktrace automatically on PS

* fix: compilation error if SENTRY_TEST_PATH_PREFIX is defined

* run unit tests with custom path prefix

* linter issue

* fix cmake.py

* Update tests/unit/sentry_testsupport.h