Add as unit-test an invalid PLY model triggering heap-buffer-overflow

==23896==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x12f9daec1827 at pc 0x7ffcad83699c bp 0x00c61574c910 sp 0x00c61574c910
READ of size 1 at 0x12f9daec1827 thread T0
==23896==WARNING: Failed to use and restart external symbolizer!
    #0 0x7ffcad83699b in Assimp::IOStreamBuffer<char>::getNextLine C:\Users\aavenel\Dev\assimp\include\assimp\IOStreamBuffer.h:299
    #1 0x7ffcad83ce69 in Assimp::PLY::DOM::ParseHeader C:\Users\aavenel\Dev\assimp\code\AssetLib\Ply\PlyParser.cpp:428
    #2 0x7ffcad83d58e in Assimp::PLY::DOM::ParseInstanceBinary C:\Users\aavenel\Dev\assimp\code\AssetLib\Ply\PlyParser.cpp:498
    assimp#3 0x7ffcad83302a in Assimp::PLYImporter::InternReadFile C:\Users\aavenel\Dev\assimp\code\AssetLib\Ply\PlyLoader.cpp:189
    assimp#4 0x7ffcad4f2f48 in Assimp::BaseImporter::ReadFile C:\Users\aavenel\Dev\assimp\code\Common\BaseImporter.cpp:135
    assimp#5 0x7ffcad51ee46 in Assimp::Importer::ReadFile C:\Users\aavenel\Dev\assimp\code\Common\Importer.cpp:709
    assimp#6 0x7ff7dd8f9f1a in ImportModel C:\Users\aavenel\Dev\assimp\tools\assimp_cmd\Main.cpp:307
    assimp#7 0x7ff7dd8fdf9e in Assimp_Info C:\Users\aavenel\Dev\assimp\tools\assimp_cmd\Info.cpp:344
    assimp#8 0x7ff7dd8fc04f in main C:\Users\aavenel\Dev\assimp\tools\assimp_cmd\Main.cpp:222
    assimp#9 0x7ff7dd9030eb in __scrt_common_main_seh D:\a\_work\1\s\src\vctools\crt\vcstartup\src\startup\exe_common.inl:288
    assimp#10 0x7ffd39e57343 in BaseThreadInitThunk+0x13 (C:\WINDOWS\System32\KERNEL32.DLL+0x180017343)
    assimp#11 0x7ffd3a2626b0 in RtlUserThreadStart+0x20 (C:\WINDOWS\SYSTEM32\ntdll.dll+0x1800526b0)

Author: Alexandre Avenel

test/models/invalid/crash-30d6d0f7c529b3b66b4131700b7a4580cd7082df.ply

@@ -196,3 +196,10 @@ TEST_F(utPLYImportExport, parseErrorTest) {
     const aiScene *scene = importer.ReadFileFromMemory(test_file, strlen(test_file), 0);
     EXPECT_NE(nullptr, scene);
 }
+
+// This file is invalid, we just want to ensure that the importer is not crashing
+TEST_F(utPLYImportExport, parseInvalid) {
+    Assimp::Importer importer;
+    const aiScene *scene = importer.ReadFile(ASSIMP_TEST_MODELS_DIR "/invalid/crash-30d6d0f7c529b3b66b4131700b7a4580cd7082df.ply", 0);
+    EXPECT_EQ(nullptr, scene);
+}