dev: version from file to cmake and python (#1025)

- renamed conda-recipe folder
- added a check to see if build and install folder exists in build.sh (conda recipe)
- created VERSION file that has '0.0.0'for developer but can be updated using update_version.py that takes in a version. The script checks for semantic versioning and updates VERSION file
- VERSION file also copied along with py files to slsdet in python cmakelist and build_pylib.sh (for conda), also copied in root folder for installations (for no coding purpose)
- init.py and setup.py reads this file to get the version (a bit differently to find the VERSION file)
- VERSION file read into cmake to get the version and also added to compile definition. So RELEASE removed from versionAPI.h (using SLS_DET_VERSION compile definiton instead) and also removed updateRelease script.
- conda getting project version from environment variable SLS_DET_VERSION that is set in build_pylib.sh prior.
- added 3.13 python to conda build
- anything related to ctb removed from release notes as users will always use developer
- sets 0.0.0 to VERSION file by running update_version.py without an argument

conda-recipe/copy_lib.sh

@@ -0,0 +1,22 @@
+# SPDX-License-Identifier: LGPL-3.0-or-other
+# Copyright (C) 2021 Contributors to the SLS Detector Package
+
+mkdir -p $PREFIX/lib
+mkdir -p $PREFIX/bin
+mkdir -p $PREFIX/include/sls
+# mkdir $PREFIX/include/slsDetectorPackage
+
+#Shared and static libraries
+cp build/install/lib/* $PREFIX/lib/
+
+#Binaries
+cp build/install/bin/sls_detector_acquire $PREFIX/bin/.
+cp build/install/bin/sls_detector_get $PREFIX/bin/.
+cp build/install/bin/sls_detector_put $PREFIX/bin/.
+cp build/install/bin/sls_detector_help $PREFIX/bin/.
+cp build/install/bin/slsReceiver $PREFIX/bin/.
+cp build/install/bin/slsMultiReceiver $PREFIX/bin/.
+
+
+cp build/install/include/sls/* $PREFIX/include/sls
+cp -rv build/install/share $PREFIX