Add texref get APIs support (#1471)

Added support for -
    hipTexRefGetArray
    hipTexRefGetAddressMode
    hipTexRefGetAddress

include/hip/hcc_detail/hip_runtime_api.h

@@ -3375,8 +3375,12 @@ hipError_t hipGetTextureObjectTextureDesc(hipTextureDesc* pTexDesc,
                                           hipTextureObject_t textureObject);
 hipError_t hipTexRefSetArray(textureReference* tex, hipArray_const_t array, unsigned int flags);
 
+hipError_t hipTexRefGetArray(hipArray_t* array, textureReference tex);
+
 hipError_t hipTexRefSetAddressMode(textureReference* tex, int dim, hipTextureAddressMode am);
 
+hipError_t hipTexRefGetAddressMode(hipTextureAddressMode* am, textureReference tex, int dim);
+
 hipError_t hipTexRefSetFilterMode(textureReference* tex, hipTextureFilterMode fm);
 
 hipError_t hipTexRefSetFlags(textureReference* tex, unsigned int flags);
@@ -3386,6 +3390,8 @@ hipError_t hipTexRefSetFormat(textureReference* tex, hipArray_Format fmt, int Nu
 hipError_t hipTexRefSetAddress(size_t* offset, textureReference* tex, hipDeviceptr_t devPtr,
                                size_t size);
 
+hipError_t hipTexRefGetAddress(hipDeviceptr_t* dev_ptr, textureReference tex);
+
 hipError_t hipTexRefSetAddress2D(textureReference* tex, const HIP_ARRAY_DESCRIPTOR* desc,
                                  hipDeviceptr_t devPtr, size_t pitch);