replace localhost with base_url

[Natkeeran]

GitHub Issue: (link)

What does this Pull Request do?

Replaces the localhost with ansiable variables.

How should this be tested?

• Pull in this PR:

- src: https://github.com/Natkeeran/ansible-role-blazegraph
  name: Islandora-Devops.blazegraph
  version: replace_localhost

• Vagrant up
• test to see if content gets index into blazegraph

Interested parties

Tag (@ mention) interested parties or, if unsure, @Islandora-Devops/committers

[dannylamb]

Tested with Islandora-Devops/islandora-playbook#124 and it works as advertised.