Upgrade Python, Pandas, and SIP versions (#4747)

Python is moved to 3.11 and packaged in Appveyor. This version is a good spot in the lifecycle.

Packaged SIP at the current version, I needed this to get around some of the reparsing that was required.
Eventually this will break but make -f Makefile.SIP likely creates a new build, we should do this at
every "major" release. Unfroze the rest so it can move freely.

Add iterator support to GoldenCheetah container data types in Python. This avoids the Pandas regression that held us back.

Added code signing for MacOS as this was a requirement to run my local binaries and unfortunately needed to rewrite the build.

This puts us at a good jumping off spot for building a universal Mac binary but there's a lot of work left.

appveyor.yml

@@ -12,6 +12,7 @@ image:
 
 environment:
   APPVEYOR_SAVE_CACHE_ON_ERROR: true
+  PYTHON_VERSION: "3.11"
   GC_GOOGLE_CALENDAR_CLIENT_SECRET:
     secure: hwjHTrSAMEbKd9PA+5x/zI4x5Uk4KQm1hdfZzkwiu8k=
   GC_GOOGLE_DRIVE_CLIENT_ID:
@@ -62,11 +63,6 @@ init:
 - cmd: call c:\"Program Files"\"Microsoft Visual Studio"\2022\Community\VC\Auxiliary\Build\vcvarsall.bat amd64
 # Setup NSIS
 - cmd: set PATH=%PATH%;C:\"Program Files (x86)"\NSIS
-# install Python 3.7
-- cmd: appveyor DownloadFile "https://www.python.org/ftp/python/3.7.9/python-3.7.9-amd64.exe"
-- cmd: python-3.7.9-amd64.exe /quiet InstallAllUsers=1 PrependPath=1 TargetDir="C:\Python37-x64"
-- cmd: c:\python37-x64\python --version
-- cmd: del python-3.7.9-amd64.exe
 
 # Linux / macOS
 - sh: >-
@@ -92,7 +88,6 @@ init:
 cache:
 - gc-ci-libs.zip -> appveyor.yml
 - jom_1_1_3.zip
-- sip-4.19.8 -> appveyor.yml
 - C:\R
 - C:\Python -> src\Python\requirements.txt
 - c:\tools\vcpkg\installed\
@@ -100,6 +95,8 @@ cache:
 - srmio -> appveyor.yml
 - D2XX
 - site-packages
+- src\Python\SIP\release\sip_lib.lib -> src\Python\SIP\goldencheetah.sip
+- src\Python\SIP\libsip_lib.a -> src\Python\SIP\goldencheetah.sip
 
 install:
 
@@ -132,40 +129,32 @@ install:
 - cmd: R --version
 - cmd: echo DEFINES+=GC_WANT_R >> src\gcconfig.pri
 
-# Get Python embeddable and install packages
+# Get Python and add to config
 - ps: >-
     if ($isWindows -And -not (Test-Path 'C:\Python')) {
-      Start-FileDownload "https://www.python.org/ftp/python/3.7.9/python-3.7.9-embed-amd64.zip" Python.zip
-      7z x Python.zip -oC:\Python\
-      echo python37.zip . '' 'import site' | Out-File C:\Python\python37._pth -Encoding ascii
+      $pyurl = "https://www.python.org/ftp/python/3.11.9/python-3.11.9-embed-amd64.zip"
+      Start-FileDownload $pyurl "python-embed.zip"
+      Expand-Archive -Path python-embed.zip -DestinationPath C:\Python -Force
       mkdir C:\Python\lib\site-packages
-      c:\python37-x64\python -m pip install --upgrade pip
-      c:\python37-x64\python -m pip install -r src\Python\requirements.txt -t C:\Python\lib\site-packages
+      # Enable pip in embedded Python
+      (Get-Content C:\Python\python311._pth) -replace '#import site', 'import site' | Set-Content C:\Python\python311._pth
+      Start-FileDownload "https://bootstrap.pypa.io/get-pip.py" "get-pip.py"
+      C:\Python\python.exe get-pip.py --no-warn-script-location
     }
-
-# Get SIP and and install on Python
-- ps: >-
-    if ($isWindows -And -not (Test-Path 'sip-4.19.8')) {
-      Start-FileDownload "https://sourceforge.net/projects/pyqt/files/sip/sip-4.19.8/sip-4.19.8.zip"
-        7z x sip-4.19.8.zip
-        cd sip-4.19.8
-        c:\python37-x64\python --version
-        c:\python37-x64\python configure.py
-        jom -j2
-        cd ..
-    }
-- cmd: cd sip-4.19.8 & nmake install & cd ..
-
-# Add Python (avoiding collision between GC Context.h and Python context.h)
+- cmd: set PATH=C:\Python311-x64\Scripts\;C:\Python311-x64\;%PATH%
+- cmd: python --version
 - cmd: echo DEFINES+=GC_WANT_PYTHON >> src\gcconfig.pri
-- cmd: echo PYTHONINCLUDES=-ICore -I\"c:\python37-x64\include\" >> src\gcconfig.pri
-- cmd: echo PYTHONLIBS=-L\"c:\python37-x64\libs\" -lpython37 >> src\gcconfig.pri
-
+- cmd: echo PYTHONINCLUDES=Core c:\Python311-x64\include >> src\gcconfig.pri
+- cmd: echo PYTHONLIBS=-L\"c:\Python311-x64\libs\" -lpython311 >> src\gcconfig.pri
+# Upgrade pip to ensure you have the latest version
+- cmd: python -m pip install --upgrade pip
+# Install your project's dependencies from a requirements.txt file
+- cmd: "python -m pip install --only-binary :all: -r src/Python/requirements.txt -t C:/Python/lib/site-packages"
 # GSL
 - cmd: echo GSL_INCLUDES=c:\tools\vcpkg\installed\x64-windows\include >> src\gcconfig.pri
 - cmd: echo GSL_LIBS=-Lc:\tools\vcpkg\installed\x64-windows\lib -lgsl -lgslcblas >> src\gcconfig.pri
 
-# Linux / macOS
+# Linux / macOS - install dependencies first (including Python 3.11)
 - sh: bash appveyor/$OS_NAME/install.sh
 
 before_build: