Feature: Update conduit internals to use conduit-commons

[simonl2002]

Feature description

This work includes removing config parameters and validations in the connector SDK in favor of using the config parameters in conduit-commons (see ConduitIO/conduit-commons#18 and ConduitIO/conduit-commons#19). This allows us to reuse the same code in connectors and processors. Also paramgen can then be removed from the SDK in favor of paramgen in conduit-commons, which will then work for both connectors and processors.

Additionally we need to remove sdk.Record (connector SDK) and record.Record (Conduit) in favor of opencdc.Record in conduit-commons. This will simplify our codebase as well as have a positive impact on performance, since we won't have to do as many transformations between the types, which is currently happening in the hot path (for every record).

[lovromazgon]

Migration script for connectors regarding the changes done in this issue:

sed -i '' 's/conduit-connector-sdk\/cmd\/paramgen/conduit-commons\/paramgen/g' tools.go
find . -type f -iname "*.go" -exec sed -i '' 's/sdk.Record/opencdc.Record/g' {} +
find . -type f -iname "*.go" -exec sed -i '' 's/sdk.Operation/opencdc.Operation/g' {} +
find . -type f -iname "*.go" -exec sed -i '' 's/sdk.Position/opencdc.Position/g' {} +
find . -type f -iname "*.go" -exec sed -i '' 's/sdk.Change/opencdc.Change/g' {} +
find . -type f -iname "*.go" -exec sed -i '' 's/sdk.Data/opencdc.Data/g' {} +
find . -type f -iname "*.go" -exec sed -i '' 's/sdk.RawData/opencdc.RawData/g' {} +
find . -type f -iname "*.go" -exec sed -i '' 's/sdk.StructuredData/opencdc.StructuredData/g' {} +
find . -type f -iname "*.go" -exec sed -i '' 's/sdk.Metadata/opencdc.Metadata/g' {} +
find . -type f -iname "*.go" -exec sed -i '' 's/sdk.Parameter/config.Parameter/g' {} +
find . -type f -iname "*.go" -exec sed -i '' 's/sdk.Validation/config.Validation/g' {} +
find . -type f -iname "*.go" -exec sed -i '' 's/Parameters() map\[string\]config.Parameter/Parameters() config.Parameters/g' {} +
find . -type f -iname "*.go" -exec sed -i '' '/ *Source) Configure(/ s/map\[string\]string/config.Config/g' {} +
find . -type f -iname "*.go" -exec sed -i '' '/ *Destination) Configure(/ s/map\[string\]string/config.Config/g' {} +
find . -type f -iname "*.go" -exec sed -i '' 's/sdk.Util.ParseConfig(/sdk.Util.ParseConfig(ctx, /g' {} +

goimports -w .
gci write .
go mod tidy

make generate

Afterwards, try running tests and fix any issues that still exist. Before pushing the changes, also run make lint.