build: switch to meson buildsystem

We build the project with 'meson' now instead of using custom
configure script + GNU Makefiles. To build the project, go to
the project root directory and use the following commands:

Building:
meson build
cd build
ninja

Update Language Files:
ninja shopsystem-pot
ninja shopsystem-update-po

Install:
DESTDIR=./tmp ninja install

1 files changed, 11 insertions, 0 deletions

diff --git a/data/invoice/invoice.final.txt b/data/invoice/invoice.final.txt
new file mode 100644
index 0000000..80e60b8
--- /dev/null
+++ b/data/invoice/invoice.final.txt
@@ -0,0 +1,11 @@
+{{{ADDRESS}}} {{{LASTNAME}}},
+
+wir erlauben uns, Ihnen für den Verzehr von Speisen und Getränken
+wie folgt zu berechnen:
+
+{{{INVOICE_TABLE}}}
+
+{{{VAT}}}
+
+Grüße aus dem {{{SPACENAME}}},
+das Shop-System