[ADD] xml-tag-position: enforce id, t-if/t-else/t-elif and class positioning attribute rules

[moylop260]

Rename the check xml-id-position-first to xml-tag-position to support a more general set of attribute positioning constraints.

Specifically:
- t-if, t-else, and t-elif must always be the first attribute in any XML tag.
- id, t-att-id, t-attf-id must be the second attribute
- class, t-att-class, t-attf-class must be the third attribute

Changes:
- Refactor checks_odoo_module_xml.py to use a single check_xml_tag_position visitor and a unified autofix.
- Update rewrite_start_tag in node_xml.py to accept a list of ordered attribute names, maintaining the specified sequence at the beginning of the tag.
- Update test cases in test_repo/broken_module/template1.xml to cover these formatting rules.
- Update tests/test_checks.py and tests/test_node_xml.py to adapt check names and check counts.
- Regenerate README.md to document the new check and update examples.