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, 150 insertions, 0 deletions

diff --git a/src/avp/gui/presetmanager.ui b/src/avp/gui/presetmanager.ui
new file mode 100644
index 0000000..5257b1c
--- /dev/null
+++ b/src/avp/gui/presetmanager.ui
@@ -0,0 +1,150 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>presetmanager</class>
+ <widget class="QWidget" name="presetmanager">
+  <property name="windowModality">
+   <enum>Qt::NonModal</enum>
+  </property>
+  <property name="enabled">
+   <bool>true</bool>
+  </property>
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>497</width>
+    <height>377</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Preset Manager</string>
+  </property>
+  <layout class="QVBoxLayout" name="verticalLayout">
+   <item>
+    <layout class="QHBoxLayout" name="horizontalLayout_3">
+     <item>
+      <widget class="QLineEdit" name="lineEdit_search">
+       <property name="text">
+        <string/>
+       </property>
+       <property name="placeholderText">
+        <string>Filter by name</string>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <widget class="QComboBox" name="comboBox_filter">
+       <property name="minimumSize">
+        <size>
+         <width>200</width>
+         <height>0</height>
+        </size>
+       </property>
+      </widget>
+     </item>
+    </layout>
+   </item>
+   <item>
+    <layout class="QHBoxLayout" name="horizontalLayout">
+     <item>
+      <widget class="QListWidget" name="listWidget_presets">
+       <property name="sizePolicy">
+        <sizepolicy hsizetype="Expanding" vsizetype="Expanding">
+         <horstretch>0</horstretch>
+         <verstretch>0</verstretch>
+        </sizepolicy>
+       </property>
+       <property name="tabKeyNavigation">
+        <bool>true</bool>
+       </property>
+      </widget>
+     </item>
+    </layout>
+   </item>
+   <item>
+    <layout class="QHBoxLayout" name="horizontalLayout_2">
+     <property name="sizeConstraint">
+      <enum>QLayout::SetMinimumSize</enum>
+     </property>
+     <item>
+      <widget class="QPushButton" name="pushButton_import">
+       <property name="text">
+        <string>Import</string>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <widget class="QPushButton" name="pushButton_export">
+       <property name="text">
+        <string>Export</string>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <spacer name="horizontalSpacer">
+       <property name="orientation">
+        <enum>Qt::Horizontal</enum>
+       </property>
+       <property name="sizeHint" stdset="0">
+        <size>
+         <width>40</width>
+         <height>20</height>
+        </size>
+       </property>
+      </spacer>
+     </item>
+     <item>
+      <widget class="QPushButton" name="pushButton_rename">
+       <property name="enabled">
+        <bool>true</bool>
+       </property>
+       <property name="text">
+        <string>Rename</string>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <widget class="QPushButton" name="pushButton_delete">
+       <property name="text">
+        <string>Delete</string>
+       </property>
+      </widget>
+     </item>
+    </layout>
+   </item>
+   <item>
+    <layout class="QHBoxLayout" name="horizontalLayout_4">
+     <item alignment="Qt::AlignRight">
+      <widget class="QLabel" name="label">
+       <property name="text">
+        <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;&lt;span style=&quot; font-size:10pt; font-style:italic;&quot;&gt;Right-click components in the main window to create presets&lt;/span&gt;&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <spacer name="horizontalSpacer_2">
+       <property name="orientation">
+        <enum>Qt::Horizontal</enum>
+       </property>
+       <property name="sizeHint" stdset="0">
+        <size>
+         <width>40</width>
+         <height>20</height>
+        </size>
+       </property>
+      </spacer>
+     </item>
+     <item>
+      <widget class="QPushButton" name="pushButton_close">
+       <property name="text">
+        <string>Close</string>
+       </property>
+      </widget>
+     </item>
+    </layout>
+   </item>
+  </layout>
+ </widget>
+ <resources/>
+ <connections/>
+</ui>