chore(proj): use environment variables for user name and email.
chore(proj): rename Experimentalism.proj to Build.proj.
chore(build): introduce Build.config.
chore(config): introduce BranchName and CommitMessage properties.
chore(build): define properies and items in config file.
chore(config): remove properties aleady defined in CI,

which may cause problem.
chore(build): rename BranchName to CurrentBranchName

and use StartsWith method instead of Contains.
style(build): rearrange lines to clarify.
Merge pull request #11 from jwChung/build-config

Define build configuration