Add support for redisearch

[chayim]

• [ ] #2717
• [ ] #2718
• [ ] #2719
• [ ] #2720
• [ ] #2721
• [ ] #2722
• [ ] #2723
• [ ] #2724
• [ ] #2725
• [ ] #2726
• [ ] #2727
• [ ] #2728
• [ ] #2729
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• [ ] #2731
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• [ ] #2733
• [ ] #2734
• [ ] #2735
• [ ] #2736
• [ ] #2737
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• [ ] #2741
• [ ] #2742
• [ ] #2743
• [ ] #2744
• [ ] #2745

[vibbix]

These are implemented in LettuceMod, maybe they can get merged in?