science/openbabel: Update to 2.4.1

[dbaio]

Summary

science/openbabel: Update to 2.4.1

Patches removed:
  - Integrated upstream: patch-git_c3abbdda, patch-gcc5-support
  - Builds without it:   patch-scripts__CMakeLists.txt

While here, set LICENSE and simplify BUILD_DEPENDS.

Changes: https://github.com/openbabel/openbabel/releases

PR:		219382
Submitted by:	Yuri Victorovich <[e-mail]>
Approved by:	garga (mentor)
Differential Revision:	https://reviews.freebsd.org/D10837

Test Plan

$ portlint -C
looks fine.

poudriere testport:

10.3-RELEASE-p19 amd64
10.3-RELEASE-p19 i386
11.0-RELEASE-p10 amd64
11.0-RELEASE-p10 i386
12.0-CURRENT r318326 amd64
12.0-CURRENT r318335 i386

[dbaio]

I am executing a mini exp-run for all the ports that depends on science/openbabel:

science/libghemical
science/avogadro
science/gchemutils
science/ghemical
science/kalzium
science/v_sim

I will report here the results, but it will take a while, building devel/llvm40. 😞

[garga]

If the all dependent ports are OK it's approved

[dbaio]

All ports that depends on science/openbabel are building fine:

10.3-RELEASE-p19 amd64
10.3-RELEASE-p19 i386
11.0-RELEASE-p10 amd64
11.0-RELEASE-p10 i386
12.0-CURRENT r318326 amd64
12.0-CURRENT r318690 i386