[dev][Change] Converted the code into Redis and RedisCluster CRDs (#96)

* Initial code for separation

Signed-off-by: iamabhishek-dubey <abhishekbhardwaj510@gmail.com>

* Changed API version def for redis

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* Cluster changes begining

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* Changed service code

Signed-off-by: iamabhishek-dubey <abhishekbhardwaj510@gmail.com>

* Updated codebase for Redis

Signed-off-by: iamabhishek-dubey <abhishekbhardwaj510@gmail.com>

* Fixed service issues

Signed-off-by: iamabhishek-dubey <abhishekbhardwaj510@gmail.com>

* Added codebase for standalone redis

Signed-off-by: iamabhishek-dubey <abhishekbhardwaj510@gmail.com>

* Changed resources structure

Signed-off-by: iamabhishek-dubey <abhishekbhardwaj510@gmail.com>

* Fixed standalone service Type

Signed-off-by: iamabhishek-dubey <abhishekbhardwaj510@gmail.com>

* Fixed compare logic

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* Updated Redis Cluster CRD manifests

Signed-off-by: iamabhishek-dubey <abhishekbhardwaj510@gmail.com>

* Added logic for redis cluster creation

Signed-off-by: iamabhishek-dubey <abhishekbhardwaj510@gmail.com>

* Updated example for redis cluster --signoff

* Added condition to create redis cluster

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* Fixed golang-ci linter warnings

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* Updated CHANGELOG with v0.6.0 info

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* Updated CHANGELOG with v0.6.0 info

Signed-off-by: iamabhishek-dubey <abhishekbhardwaj510@gmail.com>

* Updated documentation with latest information

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* Removed divisive terminlogies

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