MAINT: improved linting

Strictly clang-formatted entire code base as better starting point for branches.
Switched to modified version of cpplint.py which understands the difference between boolean operators ("and" and "or") and function calls.

Summary:
triggering jenkins

prepared docker files for cpplint and vtk export

trigger

added linting

valid target names

clang-format pointer and reference alignment

linted entire c++ code base, added clang-format config and cpplint

triggering jenkins

prepared docker files for cpplint and vtk export

trigger

added linting

valid target names

clang-format pointer and reference alignment

MAINT: gcc5.4 compatibility

Merge branch 'feat/future_main' of ssh://c4science.ch/source/muSpectre into feat/future_main

MAINT: Merge branch 'master' into feat/future_main

MAINT: strict clang format as better starting point

MAINT: Linter now respects boolean operators

Test Plan: ci passes

Reviewers: RLeute, afalsafi

Differential Revision: https://c4science.ch/D229