Make lucene/solr a OSGI bundle through Ant [LUCENE-3167]

We need to make a bundle thriugh Ant, so the binary can be published and no more need the download of the sources. Actually to get a OSGI bundle we need to use maven tools and build the sources. Here the reference for the creation of the OSGI bundle through Maven:

#2421

Bndtools could be used inside Ant

---
Migrated from [LUCENE-3167](https://issues.apache.org/jira/browse/LUCENE-3167) by Luca Stancapiano, 12 votes, updated Sep 26 2013
Environment:
```
bndtools
```

Attachments: [lucene_trunk.patch](https://apache.github.io/lucene-jira-archive/attachments/LUCENE-3167/lucene_trunk.patch) (versions: 2), [LUCENE-3167_20130108.patch](https://apache.github.io/lucene-jira-archive/attachments/LUCENE-3167/LUCENE-3167_20130108.patch), [LUCENE-3167.patch](https://apache.github.io/lucene-jira-archive/attachments/LUCENE-3167/LUCENE-3167.patch) (versions: 3)
Linked issues:
- [SMX4-1306](https://issues.apache.org/jira/browse/SMX4-1306)

Start by reviewing the attached lucene_trunk.patch and the Maven-based OSGi bundle reference in issue #2421. Then inspect the project's Ant build entry points and determine how bndtools could be integrated. Done means the binary can be published as an OSGi bundle through Ant without requiring source downloads.

Written by the indexing model from the issue text.