added example shower

python/example_shower/epos_proton_100EeV_exampleShower/CoREAS/config.yaml

+type: RadioProcess
+algorithm: CoREAS
+units:
+  time: ns
+  frequency: GHz
+  electric field: V/m
+  distance: m
+name: CoREAS

python/example_shower/epos_proton_100EeV_exampleShower/ZHS/config.yaml

+type: RadioProcess
+algorithm: ZHS
+units:
+  time: ns
+  frequency: GHz
+  electric field: V/m
+  distance: m
+name: ZHS

python/example_shower/epos_proton_100EeV_exampleShower/config.yaml

+name: test_epos_100EeV_full
+creator: CORSIKA8
+version: 8.0.0-prealpha
+args: "./bin/corsika -N 1 -E 100e9 --emcut 100e9 --hadcut=10000. -s 1 -M EPOS-LHC -p 2212 -f test_epos_100EeV_full "

python/example_shower/epos_proton_100EeV_exampleShower/energyloss/config.yaml

+type: EnergyLoss
+units:
+  energy: GeV
+  grammage: g/cm^2
+bin-size: 10
+nbins: 200
+grammage_threshold: 9.9999999999999978e-05
+name: energyloss

python/example_shower/epos_proton_100EeV_exampleShower/energyloss/summary.yaml

+sum_dEdX: 98629523458.982727
+Xmax: 0
+dEdXmax: 0

python/example_shower/epos_proton_100EeV_exampleShower/particles/config.yaml

+type: ObservationPlane
+units:
+  length: m
+plane:
+  center:
+    - 0
+    - 0
+    - 6371000
+  normal:
+    - 0
+    - 0
+    - 1
+x-axis:
+  - 1
+  - 0
+  - 0
+y-axis:
+  - 0
+  - 1
+  - 0
+delete_on_hit: true
+name: particles

python/example_shower/epos_proton_100EeV_exampleShower/particles/summary.yaml

+Eground: 1354017400.6013713
+hadrons: 14005
+muons: 2024
+em: 0
+others: 0

python/example_shower/epos_proton_100EeV_exampleShower/profile/config.yaml

+type: LongitudinalProfile
+units:
+  grammage: g/cm^2
+bin-size: 10
+nbins: 200
+name: profile

python/example_shower/epos_proton_100EeV_exampleShower/summary.yaml

+showers: 1
+seed: 1
+start time: 2023-10-05T10:27:35+0100
+end time: 2023-10-06T01:29:32+0100
+runtime: 15:01:57.432