speculative reorganization of the requirements & environment files

- This is only a test!
- The various environment*.yml and requirements*.txt files have all
  been moved into a directory named "environments-and-requirements".
- The idea is to clean up our root directory so that the github home
  page is tidy.
- The manual install instructions will start with the instructions to
  create a symbolic link from environment.yml to the appropriate file
  for OS and GPU.
- The 1-click installers have been updated to accommodate this change.

.gitignore

@@ -219,3 +219,8 @@ models/gfpgan
 
 # ignore initfile
 invokeai.init
+
+# ignore environment.yml and requirements.txt
+# these are to be copied from environments-and-requirements
+environment.yml
+requirements.txt

1-click-installer/install.bat

@@ -81,6 +81,7 @@ call conda activate
 
 @rem create the environment
 call conda env remove -n invokeai
+mklink environment.yml environments-and-requirements\environment-win-cuda.yml
 call conda env create
 if "%ERRORLEVEL%" NEQ "0" (
    echo ""

1-click-installer/install.sh

@@ -94,14 +94,19 @@ CONDA_BASEPATH=$(conda info --base)
 source "$CONDA_BASEPATH/etc/profile.d/conda.sh" # otherwise conda complains about 'shell not initialized' (needed when running in a script)
 
 conda activate
-
 if [ "$OS_NAME" == "mac" ]; then
-    environment_file="environment-mac.yml"
+    echo "Macintosh system detected. Installing MPS and CPU support."
+    ln -sf environments-and-requirements/environment-mac.yml environment.yml
 else
-    environment_file="environment.yml"
+    if (lsmod | grep amdgpu) &>/dev/null ; then
+	echo "Linux system with AMD GPU driver detected. Installing ROCm and CPU support"
+	ln -sf environments-and-requirements/environment-lin-amd.yml environment.yml
+    else
+	echo "Linux system detected. Installing CUDA and CPU support."
+	ln -sf environments-and-requirements/environment-lin-cuda.yml environment.yml
     fi
-
-conda env update -f "${environment_file}"
+fi
+conda env update
 
 status=$?