feat: 初始化Easy Patch插件及依赖文件

- 添加Blender插件核心文件：__init__.py、ui.py、property.py、preference.py
- 添加插件工具模块：g.py、loop.py、generate_loop.py、const.py、op.py
- 添加翻译工具：utils/trans.py
- 添加PuLP线性规划库及其依赖文件，包括CBC求解器二进制文件
- 添加.gitignore和VSCode配置文件

utils/pulp/sparse.py

@@ -0,0 +1,88 @@
+# Sparse : Python basic dictionary sparse matrix
+
+# Copyright (c) 2007, Stuart Mitchell (s.mitchell@auckland.ac.nz)
+# $Id: sparse.py 1704 2007-12-20 21:56:14Z smit023 $
+
+# Permission is hereby granted, free of charge, to any person obtaining a
+# copy of this software and associated documentation files (the
+# "Software"), to deal in the Software without restriction, including
+# without limitation the rights to use, copy, modify, merge, publish,
+# distribute, sublicense, and/or sell copies of the Software, and to
+# permit persons to whom the Software is furnished to do so, subject to
+# the following conditions:
+
+# The above copyright notice and this permission notice shall be included
+# in all copies or substantial portions of the Software.
+
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+# IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+# CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+# TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+# SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+"""
+sparse this module provides basic pure python sparse matrix implementation
+notably this allows the sparse matrix to be output in various formats
+"""
+
+
+class Matrix(dict):
+    """This is a dictionary based sparse matrix class"""
+
+    def __init__(self, rows, cols):
+        """initialises the class by creating a matrix that will have the given
+        rows and columns
+        """
+        self.rows = rows
+        self.cols = cols
+        self.rowdict = {row: {} for row in rows}
+        self.coldict = {col: {} for col in cols}
+
+    def add(self, row, col, item, colcheck=False, rowcheck=False):
+        if not (rowcheck and row not in self.rows):
+            if not (colcheck and col not in self.cols):
+                dict.__setitem__(self, (row, col), item)
+                self.rowdict[row][col] = item
+                self.coldict[col][row] = item
+            else:
+                print(self.cols)
+                raise RuntimeError(f"col {col} is not in the matrix columns")
+        else:
+            raise RuntimeError(f"row {row} is not in the matrix rows")
+
+    def addcol(self, col, rowitems):
+        """adds a column"""
+        if col in self.cols:
+            for row, item in rowitems.items():
+                self.add(row, col, item, colcheck=False)
+        else:
+            raise RuntimeError("col is not in the matrix columns")
+
+    def get(self, k, d=0):
+        return dict.get(self, k, d)
+
+    def col_based_arrays(self):
+        numEls = len(self)
+        elemBase = []
+        startsBase = []
+        indBase = []
+        lenBase = []
+        for i, col in enumerate(self.cols):
+            startsBase.append(len(elemBase))
+            elemBase.extend(list(self.coldict[col].values()))
+            indBase.extend(list(self.coldict[col].keys()))
+            lenBase.append(len(elemBase) - startsBase[-1])
+        startsBase.append(len(elemBase))
+        return numEls, startsBase, lenBase, indBase, elemBase
+
+
+if __name__ == "__main__":
+    """unit test"""
+    rows = list(range(10))
+    cols = list(range(50, 60))
+    mat = Matrix(rows, cols)
+    mat.add(1, 52, "item")
+    mat.add(2, 54, "stuff")
+    print(mat.col_based_arrays())