make hidden head options available (#150)

add '(no)details' option to head in all styles, plus 'alternate' in casual

Co-authored-by: David <forenkram@gmx.de>

moderncvstyleoldstyle.sty

@@ -12,13 +12,20 @@
 \NeedsTeXFormat{LaTeX2e}
 \ProvidesPackage{moderncvstyleoldstyle}[2022-02-21 v2.3.1 modern curriculum vitae and letter style scheme: oldstyle]
 
+% headoptions
+\@initializecommand{\moderncvstyleheadoptions}{}
+\@initializeif{\if@datainhead}\@datainheadtrue
+\DeclareOption{details}{\edef\moderncvstyleheadoptions{\moderncvstyleheadoptions,details}}
+\DeclareOption{nodetails}{\@datainheadfalse\edef\moderncvstyleheadoptions{\moderncvstyleheadoptions,nodetails}}
+
+
 % toggle use of symbol fonts.
 \@initializeif{\if@symbols}\@symbolsfalse
 \DeclareOption{symbols}      {\@symbolstrue}
 \DeclareOption{nosymbols}    {\@symbolsfalse}
 
 \DeclareOption*{}% avoid choking on unknown options
-\ExecuteOptions{symbols}
+\ExecuteOptions{symbols,details}
 \ProcessOptions*\relax% \ProcessOptions* processes the options in the order provided (i.e., with the later ones possibly overriding the former ones), while \ProcessOptions processes them in the order of the package
 
 %-------------------------------------------------------------------------------
@@ -77,9 +84,15 @@
 %-------------------------------------------------------------------------------
 %                header, body & footer
 %-------------------------------------------------------------------------------
-\moderncvhead{4}
+\moderncvhead[\moderncvstyleheadoptions]{4}
 \moderncvbody{4}
-
+% include foot only if nodetails option is active since otherwise we have two times the information 
+% on the page
+\if@datainhead
+% if data is shown in head, do not include the footer
+\else
+  \moderncvfoot{1}
+\fi
 
 \endinput