+ es/Letter standard class (from Dan)

lib/Makefile.am

@@ -2843,6 +2843,11 @@ calettertemplatesdir = $(pkgdatadir)/templates/ca/Letters
 dist_calettertemplates_DATA = \
 	templates/ca/Letters/Letter_%28Standard_Class%29.lyx
 
+eslettertemplatesdir = $(pkgdatadir)/templates/es/Letters
+dist_eslettertemplates_DATA = \
+	templates/es/Letters/Letter_%28Standard_Class%29.lyx
+
+
 obsoletetemplatesdir = $(pkgdatadir)/templates/Obsolete
 dist_obsoletetemplates_DATA = \
 	templates/Obsolete/ACM_SIGGGRAPH_0.92_%28obsolete%29.lyx \
@@ -3235,6 +3240,7 @@ exampleandtemplate_files = \
 			   $(dist_esinsetexamples_DATA) \
 			   $(dist_esmoduleexamples_DATA) \
 			   $(dist_espresentationtemplates_DATA) \
+			   $(dist_eslettertemplates_DATA) \
 			   $(dist_euexamples_DATA) \
 			   $(dist_externalexamples_DATA) \
 			   $(dist_faexamples_DATA) \

lib/templates/es/Letters/Letter_%28Standard_Class%29.lyx

@@ -0,0 +1,173 @@
+#LyX 2.4 created this file. For more info see https://www.lyx.org/
+\lyxformat 619
+\begin_document
+\begin_header
+\save_transient_properties true
+\origin /systemlyxdir/templates/es/Letters/
+\textclass letter
+\use_default_options false
+\maintain_unincluded_children no
+\language spanish
+\language_package default
+\inputencoding utf8
+\fontencoding auto
+\font_roman "default" "default"
+\font_sans "default" "default"
+\font_typewriter "default" "default"
+\font_math "auto" "auto"
+\font_default_family default
+\use_non_tex_fonts false
+\font_sc false
+\font_roman_osf false
+\font_sans_osf false
+\font_typewriter_osf false
+\font_sf_scale 100 100
+\font_tt_scale 100 100
+\use_microtype false
+\use_dash_ligatures false
+\graphics default
+\default_output_format default
+\output_sync 0
+\bibtex_command default
+\index_command default
+\float_placement class
+\float_alignment class
+\paperfontsize default
+\spacing single
+\use_hyperref false
+\papersize default
+\use_geometry false
+\use_package amsmath 1
+\use_package amssymb 1
+\use_package cancel 1
+\use_package esint 1
+\use_package mathdots 1
+\use_package mathtools 1
+\use_package mhchem 1
+\use_package stackrel 1
+\use_package stmaryrd 1
+\use_package undertilde 1
+\cite_engine basic
+\cite_engine_type default
+\biblio_style plain
+\use_bibtopic false
+\use_indices false
+\paperorientation portrait
+\suppress_date false
+\justification true
+\use_refstyle 0
+\use_formatted_ref 0
+\use_minted 0
+\use_lineno 0
+\index Index
+\shortcut idx
+\color #008000
+\end_index
+\secnumdepth 3
+\tocdepth 3
+\paragraph_separation indent
+\paragraph_indentation default
+\is_math_indent 0
+\math_numbering_side default
+\quotes_style french
+\dynamic_quotes 0
+\papercolumns 1
+\papersides 1
+\paperpagestyle default
+\tablestyle default
+\tracking_changes false
+\output_changes false
+\change_bars false
+\postpone_fragile_content false
+\html_math_output 0
+\html_css_as_file 0
+\html_be_strict false
+\docbook_table_output 0
+\docbook_mathml_prefix 1
+\end_header
+
+\begin_body
+
+\begin_layout My Address
+<Nombre del remitente>
+\begin_inset Newline newline
+\end_inset
+
+<Calle del remitente>
+\begin_inset Newline newline
+\end_inset
+
+<Localidad/ciudad/pueblo del remitente>
+\end_layout
+
+\begin_layout Send To Address
+<Nombre del destinatario>
+\begin_inset Newline newline
+\end_inset
+
+<Calle del destinatario>
+\begin_inset Newline newline
+\end_inset
+
+<Localidad/ciudad/pueblo del destinatario>
+\end_layout
+
+\begin_layout Standard
+\begin_inset Note Note
+status open
+
+\begin_layout Plain Layout
+Los campos en verde son opcionales;
+ los rojos obligatorios.
+\end_layout
+
+\end_inset
+
+
+\end_layout
+
+\begin_layout Signature
+<Tu firma
+\begin_inset Note Note
+status collapsed
+
+\begin_layout Plain Layout
+Este campo DEBE situarse previo al campo «Apertura».
+\end_layout
+
+\end_inset
+
+>
+\end_layout
+
+\begin_layout Opening
+<Estimado/a ...>
+\end_layout
+
+\begin_layout Standard
+<El texto del cuerpo de la carta va aquí.
+ Sustituir todos los textos rodeados por los caracteres «<» y «>» (ambos incluidos) por el texto real de la carta.
+\end_layout
+
+\begin_layout Closing
+<Atentamente,>
+\end_layout
+
+\begin_layout cc
+<con copia a...>
+\end_layout
+
+\begin_layout encl
+<contenido adjunto>
+\end_layout
+
+\begin_layout Telephone
+<Número>
+\end_layout
+
+\begin_layout Location
+<Ubicación>
+\end_layout
+
+\end_body
+\end_document