[GPU] KV-cache compression support

[sshlyapn]

Details:

This PR enables KV-cache compression support Currently, it supports only combinations of the following configurations:

• Data types: INT8_SYM / INT8_ASYM
• Modes: per-token (quantization of num_heads * head_size in a single group) / per-token-per-head (quantization of each head_size group for each head per token)

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