update version 0.1.4 -> 0.1.5

CHANGELOG

+# Version 0.1.5 (January 31, 2024)
+
+- Enforce C++14 in 'CMakeLists.txt'
+- Remove scm dependency to check versions compatibility
+- Change 'setup.py' to use more environment variables in its build process
+
 # Version 0.1.4 (December 6, 2024)
 
 # Version 0.0.1 (January 23, 2024)

version.txt

-0.1.4
+0.1.5