Fix memory leaks in 3D metal code

I used leaks cmd utility in macOS to check for memory leaks in 3D rendering.
I ran RenderPerfTest and ran leaks utility for RenderPerfTest and i see that we have large memory leaks.

Process: java [9172]
Path: /Users/USER/*/java
Load Address: 0x102234000
Identifier: java
Version: 18.0.2.1 (0)
Code Type: ARM64
Platform: macOS
Parent Process: zsh [2167]

Date/Time: 2024-01-04 17:27:53.679 +0530
Launch Time: 2024-01-04 17:27:43.190 +0530
OS Version: macOS 13.6.2 (22G320)
Report Version: 7
Analysis Tool: /usr/bin/leaks

Physical footprint: 918.8M
Physical footprint (peak): 918.8M
Idle exit: untracked
----

leaks Report Version: 4.0, multi-line stacks
Process 9172: 6645594 nodes malloced for 457242 KB
Process 9172: 6519181 leaks for 417985408 total leaked bytes.

STACK OF 2151822 INSTANCES OF 'ROOT LEAK: <MetalLight>':
5 ??? 0x11383c010 0x7fffffffffffffff + 9223372041477144593
4 ??? 0x10bc858ac 0x7fffffffffffffff + 9223372041347422381
3 libprism_mtl.dylib 0x102382b98 Java_com_sun_prism_mtl_MTLContext_nSetLight + 288
2 libprism_mtl.dylib 0x102383ab0 -[MetalMeshView setLight:x:y:z:r:g:b:w:ca:la:qa:isA:range:dirX:dirY:dirZ:inA:outA:falloff:] + 188
1 libobjc.A.dylib 0x1a7ed62a8 _objc_rootAllocWithZone + 40
0 libsystem_malloc.dylib 0x1a80acf38 _malloc_zone_calloc_instrumented_or_legacy + 228
====
    2151822 (164M) << TOTAL >>
      1 (80 bytes) ROOT LEAK: <MetalLight 0x6000018000a0> [80]
      1 (80 bytes) ROOT LEAK: <MetalLight 0x6000018000f0> [80]
      1 (80 bytes) ROOT LEAK: <MetalLight 0x600001800190> [80]
      1 (80 bytes) ROOT LEAK: <MetalLight 0x6000018001e0> [80]
      1 (80 bytes) ROOT LEAK: <MetalLight 0x600001800280> [80]
      1 (80 bytes) ROOT LEAK: <MetalLight 0x6000018002d0> [80]
      1 (80 bytes) ROOT LEAK: <MetalLight 0x600001800370> [80]
      1 (80 bytes) ROOT LEAK: <MetalLight 0x6000018003c0> [80]
      1 (80 bytes) ROOT LEAK: <MetalLight 0x600001800460> [80]
      1 (80 bytes) ROOT LEAK: <MetalLight 0x6000018004b0> [80]
      1 (80 bytes) ROOT LEAK: <MetalLight 0x6000018005a0> [80]
      1 (80 bytes) ROOT LEAK: <MetalLight 0x6000018005f0> [80]



leaks Report Version: 4.0, multi-line stacks
Process 9805: 2827044 nodes malloced for 181750 KB
Process 9805: 2704156 leaks for 130472000 total leaked bytes.

STACK OF 878478 INSTANCES OF 'ROOT LEAK: <MTLDepthStencilDescriptorInternal>':
8 ??? 0x115b0fdb4 0x7fffffffffffffff + 9223372041513663925
7 ??? 0x115aae0c8 0x7fffffffffffffff + 9223372041513263305
6 libprism_mtl.dylib 0x1047068a0 Java_com_sun_prism_mtl_MTLContext_nRenderMeshView + 48
5 libprism_mtl.dylib 0x1047080c0 -[MetalMeshView render] + 1452
4 libprism_mtl.dylib 0x1047091a8 -[MetalPipelineManager getDepthStencilState] + 32
3 libobjc.A.dylib 0x1a7efcad8 objc_opt_new + 112
2 com.apple.Metal 0x1b16daf68 +[MTLDepthStencilDescriptor allocWithZone:] + 80
1 libobjc.A.dylib 0x1a7ed62a8 _objc_rootAllocWithZone + 40
0 libsystem_malloc.dylib 0x1a80acf38 _malloc_zone_calloc_instrumented_or_legacy + 228
====
    2634467 (121M) << TOTAL >>
      ----
      3 (144 bytes) ROOT LEAK: <MTLDepthStencilDescriptorInternal 0x600002c05da0> [48]
         1 (48 bytes) _private + 8 --> <MTLStencilDescriptorInternal 0x600003170000> [48]
         1 (48 bytes) _private --> <MTLStencilDescriptorInternal 0x600002c05d70> [48]
      ----
      3 (144 bytes) ROOT LEAK: <MTLDepthStencilDescriptorInternal 0x600002c2dc80> [48]
         1 (48 bytes) _private + 8 --> <MTLStencilDescriptorInternal 0x600002c60060> [48]
         1 (48 bytes) _private --> <MTLStencilDescriptorInternal 0x600002c312c0> [48]