cloudinary-http5 ignores system properties

## Describe the bug in a sentence or two.
Previous versions of the library like cloudinary-http45 took system properties into account. cloudinary-http5 doesn't do this anymore, which makes it harder to run the library with different configs.

## Issue Type (Can be multiple)
[ ] Build - Can’t install or import the SDK
[ ] Performance - Performance issues
[ x] Behaviour - Functions aren’t working as expected (Such as generate URL)
[ ] Documentation - Inconsistency between the docs and behaviour
[ ] Other (Specify)

## Steps to reproduce
Start a VM with http.proxyHost and http.proxyPort parameters. On 1.39.0 this will work, on 2.0.0 the proxy will be ignored.

## Versions and Libraries (fill in the version numbers)
Cloudinary Java SDK version - 2.0.0

## Repository
Problem is the init method: [LINK](https://github.com/cloudinary/cloudinary_java/blob/master/cloudinary-http5/src/main/java/com/cloudinary/http5/ApiStrategy.java)
The [old init method ](https://github.com/cloudinary/cloudinary_java/blob/1.39.0/cloudinary-http45/src/main/java/com/cloudinary/http45/ApiStrategy.java) invoked `useSystemProperties` on the builder. This is missing in 2.0.0