v1.1.0

• feat(rxFileUploadId): Add unique identifier used to identify a transaction. This value will be in the FormData in rxFileUploadId field and in X-RxFileUpload-ID header.
• feat(progress): Allow the user to disable the progress completion, through the RxFileUploadConfig, at the end of the .upload method. This is useful if the user want to keep the same instance of RxFileUpload and call the .upload method several times without having to subscribe again to the .progress$ Observable.
• feat(rxFileUpload): Code improvement.
• fix(rxFileUpload): RxFileUpload instance can be used several times without being in conflict with its internal data when the .upload method is called several times in a row. An error will be thrown if the process isn't finished before calling another time the .upload method.
• fix(formdata): switch the order of the fields in the FormData instance in order to be able to receive them before the file in the backend. Like this, the data can be used to process files or chunks without having to parse or save the file first.
• deps(package): Update all packages and use latest rxjsversion (7.0.1).
• doc(readme): Update documentation.