Adding new Vulkan metrics to GPU Stats

Following fields are added into GpuStatsAppInfo for tracking:
    bool createdGlesContext = false;
    bool createdVulkanDevice = false;
    bool createdVulkanSwapchain = false;
    uint32_t vulkanApiVersion = 0;
    uint64_t vulkanDeviceFeaturesEnabled = 0;
    std::vector<int32_t> vulkanInstanceExtensions = {};
    std::vector<int32_t> vulkanDeviceExtensions = {};

Extensions are tracked as 32-bit hashes.
setTargetStatsArray GPU service function added to provide
an array of stat values, used for reporting list of extensions.

Bug: b/244286661
Test: adb shell dumpsys gpu
Test: atest GpuStatsTest
Change-Id: I4ae4e3b687cd6274a9b4127a336dd0f91f5f9e39