Update tfjs-react-native to 0.2.3. (tensorflow#2748)

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Update tfjs-react-native to 0.2.2.

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Update tfjs to 1.5.2. (tensorflow#2711)

Update tfjs-node, tfjs-node-gpu to 1.5.2, 1.5.2. (tensorflow#2715)

Update tfjs-layers, tfjs-converter to 1.5.2, 1.5.2. (tensorflow#2709)

Update tfjs-data to 1.5.2. (tensorflow#2710)

Update tfjs-core to 1.5.2. (tensorflow#2708)

Update tfjs-layers, tfjs-converter to 1.5.2, 1.5.2. (tensorflow#2709)

[tfjs-react-native] include tests on npm. Bump version to 0.2.1

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tfjs-react-native fix version (add patch indicator)

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