feat: patch for visualization server

[i-chvets]

Description

Initial PR for patching of existing ROCK. Follows best practices and CVE managent spec.

Summary of changes:

• Initial patch for visualization server.
• Added requirements.in file with relaxed requirements.
• Added tensorflow installation inside rockcraft.yaml with fixed Tensorflow version.
• Updated to Python 3.8

NOTE: ROCK might not be functional due to errors in dependencies:

023-09-21 18:56:59.019 :: ERROR: google-auth 2.23.0 has requirement urllib3<2.0, but you'll have urllib3 2.0.5 which is incompatible.                    
2023-09-21 18:56:59.020 :: ERROR: tensorflow-metadata 1.14.0 has requirement absl-py<2.0.0,>=0.9, but you'll have absl-py 2.0.0 which is incompatible.    
2023-09-21 18:56:59.020 :: ERROR: tensorflow-metadata 1.14.0 has requirement protobuf<4.21,>=3.20.3, but you'll have protobuf 3.19.6 which is incompatible.                                                                                                                                                          
2023-09-21 18:56:59.020 :: ERROR: tensorflow-serving-api 2.13.0 has requirement protobuf!=4.21.0,!=4.21.1,!=4.21.2,!=4.21.3,!=4.21.4,!=4.21.5,<5.0.0dev,>=3.20.3, but you'll have protobuf 3.19.6 which is incompatible.                                                                                             
2023-09-21 18:56:59.020 :: ERROR: tensorflow-serving-api 2.13.0 has requirement tensorflow<3,>=2.13.0, but you'll have tensorflow 2.11.1 which is incompatible.                                                                                                                                                      
2023-09-21 18:56:59.020 :: ERROR: grpcio-status 1.58.0 has requirement protobuf>=4.21.6, but you'll have protobuf 3.19.6 which is incompatible.           
2023-09-21 18:56:59.020 :: ERROR: apache-beam 2.50.0 has requirement protobuf<4.24.0,>=3.20.3, but you'll have protobuf 3.19.6 which is incompatible.     
2023-09-21 18:56:59.020 :: ERROR: tfx-bsl 1.14.0 has requirement absl-py<2.0.0,>=0.9, but you'll have absl-py 2.0.0 which is incompatible.                
2023-09-21 18:56:59.020 :: ERROR: tfx-bsl 1.14.0 has requirement protobuf<5,>=3.20.3, but you'll have protobuf 3.19.6 which is incompatible.              
2023-09-21 18:56:59.020 :: ERROR: tfx-bsl 1.14.0 has requirement tensorflow<3,>=2.13, but you'll have tensorflow 2.11.1 which is incompatible.            
2023-09-21 18:56:59.020 :: ERROR: referencing 0.30.2 has requirement attrs>=22.2.0, but you'll have attrs 21.4.0 which is incompatible.                   
2023-09-21 18:56:59.020 :: ERROR: jsonschema 4.19.1 has requirement attrs>=22.2.0, but you'll have attrs 21.4.0 which is incompatible.                    
2023-09-21 18:56:59.021 :: ERROR: tensorflow-model-analysis 0.45.0 has requirement absl-py<2.0.0,>=0.9, but you'll have absl-py 2.0.0 which is incompatible.                                                                                                                                                         
2023-09-21 18:56:59.021 :: ERROR: tensorflow-model-analysis 0.45.0 has requirement protobuf<5,>=3.20.3, but you'll have protobuf 3.19.6 which is incompatible.                                                                                                                                                       
2023-09-21 18:56:59.021 :: ERROR: tensorflow-model-analysis 0.45.0 has requirement tensorflow<3,>=2.13, but you'll have tensorflow 2.11.1 which is incompatible.                                                                                                                                                     
2023-09-21 18:56:59.021 :: ERROR: tensorflow-data-validation 1.14.0 has requirement absl-py<2.0.0,>=0.9, but you'll have absl-py 2.0.0 which is incompatible.                                                                                                                                                        
2023-09-21 18:56:59.021 :: ERROR: tensorflow-data-validation 1.14.0 has requirement protobuf<5,>=3.20.3, but you'll have protobuf 3.19.6 which is incompatible.                                                                                                                                                      
2023-09-21 18:56:59.021 :: ERROR: tensorflow-data-validation 1.14.0 has requirement tensorflow<3,>=2.13, but you'll have tensorflow 2.11.1 which is incompatible.                                                                                                                                                    

[SamirPS]

For this, you can use the dump plugin: https://snapcraft.io/docs/dump-plugin

[SamirPS]

why do you need pip at the end?