[git] Converted pdf from lfs to git.

...s/benchmarks/small-deformations/LIE_small_deformation.pdf

...content/docs/benchmarks/small-deformations/Plasticity.pdf

web/content/docs/benchmarks/small-deformations/lubby2.pdf

...rks/small-deformations/non-equilibrium_initial_states.pdf

...benchmarks/small-deformations/pressure_bc/pressure_bc.pdf

...rks/small-deformations/pressure_bc/report_pressure_bc.pdf

...nt/docs/benchmarks/small-deformations/slope_stability.pdf

...s/benchmarks/thermal-two-phase-flow/heat-pipe-problem.pdf

web/content/docs/benchmarks/two-phase-flow-pp-form/main.pdf

web/content/docs/benchmarks/two-phase-flow/MoMaS.pdf

web/static/pdf/BulkElementMappings.pdf