Add the required packages for BERT Japanese Tokenizer to the Eland docker image

The BERT Japanese Tokenizer requires the following packages that are not including in the Docker image.

- fugashi
- ipadic
- unidic_lite

The list comes from the PR description where BERT Japanese was added https://github.com/elastic/eland/pull/529

Inspect the Eland Docker image definition and compare its installed packages with the BERT Japanese Tokenizer requirements listed here: fugashi, ipadic, and unidic_lite. Build the image and verify that these packages are available for the tokenizer; done means the image includes all three dependencies.

Written by the indexing model from the issue text.