Use pyproject.toml + uv_build

This replaces setup.py by a modern pyproject.toml using uv_build
backend.

Dependencies are being also managed by uv, so to install dependencies
and run the project one can execute:

```
uv sync
uv run pytest # optional
python -m avp
```

To build the both source and binary (wheel) distribution package run:
```
uv build
```

Uv can be installed with `pip install uv`.

The directory structure has been changed to reflect best practices.
- src/* -> src/avp/
- src/tests -> ../tests

1 files changed, 2 insertions, 2 deletions

diff --git a/src/tests/__init__.py b/tests/__init__.py
index e2d83e7..d0073ef 100644
--- a/src/tests/__init__.py
+++ b/tests/__init__.py
@@ -1,11 +1,11 @@
 import pytest
 import os
 import sys
-from ..core import Core
 
 
 def getTestDataPath(filename):
-    return os.path.join(Core.wd, "tests", "data", filename)
+    tests_dir = os.path.dirname(os.path.abspath(__file__))
+    return os.path.join(tests_dir, "data", filename)
 
 
 def run(logFile):