JDK-8225160 Merge JDK-8220154 initial metal implementation patch to the jdk sandbox branch

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• Resolved

JDK-8227261 Add stubs that log a message for unimplemented methods for Metal Rendering pipeline

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• Resolved

JDK-8228498 Schedule blitting based on Metal Context state

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• Resolved

JDK-8228573 Analyse performance bottleneck in present Metal implementation

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• Resolved

JDK-8224054 Implement Metal based Text Rendering

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• Closed

JDK-8226640 ☂ Demos for Metal implementations

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• Closed

JDK-8245522 Add -Dsun.java2d.metal=true flag to the relavant java2d/awt/swing JTREG tests

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• Closed

JDK-8225175 Evaluate RenderQueue Vs non-RenderQueue Design architecture for Metal Rendering Pipeline implementation

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• Closed