Add new LaTeX templates for CV, letters, and envelopes

- Created a CV template (My-CV-Briefvorlage.tex) with sections for contact information, skills, work history, education, and publications.
- Added a standard letter template (Standard-Briefumschlag.tex) for formal correspondence.
- Introduced a simple letter template (Standard-Briefvorlage-Schlicht.tex) with customizable sender information.
- Developed a detailed letter template (Standard-Briefvorlage.tex) with personal data fields and a structured layout.
- Included a class option file (brief-absender.lco) for customizing sender details in letters.
- Added a package (tkzexample.sty) for enhanced code examples and graphics in LaTeX documents.

2024-01-05-Minimalbeispiel.tex

@@ -0,0 +1,28 @@
+\documentclass[paper=a4,fontsize=12pt]{scrlttr2}
+\usepackage{fontspec}
+\usepackage{libertine}
+\usepackage{polyglossia}
+
+\setdefaultlanguage[spelling=new, babelshorthands=true]{german}
+
+\setkomavar{fromname}{Max Mustermann}
+\setkomavar{fromaddress}{Musterstraße 1 \\ 12345 Musterstadt}
+\setkomavar{fromphone}{01234/56789}
+\setkomavar{fromemail}{max@example.com}
+\setkomavar{place}{Musterstadt}
+\setkomavar{date}{03.01.2025}
+
+\begin{document}
+\begin{letter}{
+W.E.G. Paul-Müller-Str. 9/Frauenlobstr. 35 \\
+Paul-Müller-Str. 9 \\
+44805 Bochum
+}
+
+\opening{Liebe Nachbarn,}
+
+Dies ist ein Testbrief.
+
+\closing{Mit freundlichen Grüßen}
+\end{letter}
+\end{document}