Squashed 'external/toxcore/c-toxcore/' changes from 67badf694..82460b212

82460b212 feat: add ngc events
24b54722a fix: Ensure we have allocators available for the error paths.
48dbcfebc cleanup: Remove redundant `-DSODIUM_EXPORT` from definitions.
0cef46ee9 cleanup: Fix a few more clang-tidy warnings.
0c5b918e9 cleanup: Fix a few more clang-tidy warnings.
4d3c97f49 cleanup: Enforce stricter identifier naming using clang-tidy.
a549807df refactor: Add `mem` module to allow tests to override allocators.
6133fb153 chore: Add devcontainer setup for codespaces.
620e07ecd chore: Set a timeout for tests started using Conan
c0ec33b16 chore: Migrate Windows CI from Appveyor to Azure DevOps
8ed47f3ef fix incorrect documentation
a1e245841 docs: Fix doxygen config and remove some redundant comments.
b0f633185 chore: Fix the Android CI job
7469a529b fix: Add missing `#include <array>`.
2b1a6b0d2 add missing ngc constants getter declarations and definitions
2e02d5637 chore: Add missing module dependencies.
REVERT: 67badf694 feat: add ngc events

git-subtree-dir: external/toxcore/c-toxcore
git-subtree-split: 82460b2124216af1ac9d63060de310a682a2fd15

.clang-tidy

@@ -0,0 +1,40 @@
+# vim:ft=yaml
+CheckOptions:
+  - key:             readability-identifier-naming.ClassCase
+    value:           Camel_Snake_Case
+  - key:             readability-identifier-naming.ConstantCase
+    value:           lower_case
+  # bootstrap-daemon has these.
+  - key:             readability-identifier-naming.ConstantIgnoredRegexp
+    value:           "^NAME_.*"
+  - key:             readability-identifier-naming.EnumCase
+    value:           Camel_Snake_Case
+  - key:             readability-identifier-naming.EnumConstantCase
+    value:           UPPER_CASE
+  - key:             readability-identifier-naming.FunctionCase
+    value:           lower_case
+  - key:             readability-identifier-naming.GlobalConstantCase
+    value:           lower_case
+  - key:             readability-identifier-naming.MemberCase
+    value:           lower_case
+  - key:             readability-identifier-naming.MacroDefinitionCase
+    value:           UPPER_CASE
+  - key:             readability-identifier-naming.MacroDefinitionIgnoredRegexp
+    value:           "^_.*|nullable|non_null|nullptr|static_assert|ck_.*"
+  - key:             readability-identifier-naming.ParameterCase
+    value:           lower_case
+  - key:             readability-identifier-naming.StructCase
+    value:           Camel_Snake_Case
+  - key:             readability-identifier-naming.TypedefCase
+    value:           Camel_Snake_Case
+  - key:             readability-identifier-naming.TypedefIgnoredRegexp
+    value:           ".*_cb"
+  - key:             readability-identifier-naming.UnionCase
+    value:           Camel_Snake_Case
+  - key:             readability-identifier-naming.VariableCase
+    value:           lower_case
+
+  - key:             llvmlibc-restrict-system-libc-headers.Includes
+    value:           "arpa/inet.h,assert.h,ctype.h,errno.h,fcntl.h,getopt.h,libconfig.h,linux/netdevice.h,math.h,netdb.h,netinet/in.h,opus.h,pthread.h,signal.h,sodium/crypto_scalarmult_curve25519.h,sodium.h,sodium/randombytes.h,stdio.h,stdlib.h,string.h,sys/ioctl.h,syslog.h,sys/resource.h,sys/socket.h,sys/stat.h,sys/time.h,sys/types.h,time.h,unistd.h,vpx/vp8cx.h,vpx/vp8dx.h,vpx/vpx_decoder.h,vpx/vpx_encoder.h,vpx/vpx_image.h"
+  - key:             hicpp-signed-bitwise.IgnorePositiveIntegerLiterals
+    value:           true