Cleanup: enable and silence Clang-Tidy readability-function-size

Enable Clang-Tidy's `readability-function-size` rule and add a few
`NOLINT` markers to explicitly silence warnings for three functions.
These functions are huge and would IMO benefit from splitting up, but
are hard to without intimate knowledge of the code.

At least by enabling the rule, we can start tweaking the values and
refactoring other functions that bubble up as being too long/complex.

No functional changes.

1 files changed, 1 insertions, 0 deletions

diff --git a/source/blender/modifiers/intern/MOD_solidify_nonmanifold.c b/source/blender/modifiers/intern/MOD_solidify_nonmanifold.c
index 3c1d8a493ce..1e0269617ec 100644
--- a/source/blender/modifiers/intern/MOD_solidify_nonmanifold.c
+++ b/source/blender/modifiers/intern/MOD_solidify_nonmanifold.c
@@ -132,6 +132,7 @@ static int comp_float_int_pair(const void *a, const void *b)
   return (int)(x->angle > y->angle) - (int)(x->angle < y->angle);
 }
 
+/* NOLINTNEXTLINE: readability-function-size */
 Mesh *MOD_solidify_nonmanifold_modifyMesh(ModifierData *md,
                                           const ModifierEvalContext *ctx,
                                           Mesh *mesh)