NDK should obey Configuration.maxBreadcrumbs

[lemnik]

Goal

NDK should obey Configuration.maxBreadcrumbs

Design

Change the bugsnag_event.breadcrumbs to be dynamically allocated instead of a fixed-size block. This blob is written out to the event file after the core event, but before the feature-flags.

Changes

• Bumped the event version to 14
• Added bugsnag_event.max_crumb_count to track the size of the breadcrumbs buffer
• Changed bugsnag_event.breadcrumbs to be bugsnag_breadcrumb* instead of `bugsnag_breadcrumb[50]

Testing

Manual testing, and a new end-to-end test added

[bugsnagbot]

Android notifier sizes

Format	Size impact of Bugsnag (kB)	Size impact of Bugsnag when Minified (kB)
APK	1845.12	1669.0
arm64_v8a	626.95	450.82
armeabi_v7a	561.42	385.29
x86	704.75	524.53
x86_64	671.99	495.86

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