[PM-19738] Create network module

Create a library module responsible for communicating with the Bitwarden network API.

Additionally, the following changes were made to checks and workflows:
- Updated `build.gradle.kts` to include Kover for the `network` module.
- Updated `Fastfile` to include lint, test and kover report generation tasks for the `network` module.

fastlane/Fastfile

@@ -105,7 +105,7 @@ platform :android do
     )
   end
 
-  desc "Runs lint, tests and generates Kover reports for all project modules"
+  desc "Runs lint, tests, and generates Kover reports for all project modules"
   lane :check do
     gradle(
         tasks: [