Sprinkle more boost_headers love

Fix compilation errors when not using system boost. Might be more.

It's sad that one has to micro-manage boost use like this.

Change-Id: I3541789530fbdb0fb03e2b355144e63f8b031097

filter/Library_t602filter.mk

@@ -21,6 +21,8 @@ $(eval $(call gb_Library_Library,t602filter))
 
 $(eval $(call gb_Library_set_componentfile,t602filter,filter/source/t602/t602filter))
 
+$(eval $(call gb_Library_use_external,t602filter,boost_headers))
+
 $(eval $(call gb_Library_use_sdk_api,t602filter))
 
 $(eval $(call gb_Library_use_libraries,t602filter,\

i18nlangtag/CppunitTest_i18nlangtag_test_languagetag.mk

@@ -9,6 +9,8 @@
 
 $(eval $(call gb_CppunitTest_CppunitTest,i18nlangtag_test_languagetag))
 
+$(eval $(call gb_CppunitTest_use_external,i18nlangtag_test_languagetag,boost_headers))
+
 $(eval $(call gb_CppunitTest_use_api,i18nlangtag_test_languagetag,\
 	udkapi \
 	offapi \

lingucomponent/Library_guesslang.mk

@@ -12,6 +12,8 @@ $(eval $(call gb_Library_Library,guesslang))
 
 $(eval $(call gb_Library_set_componentfile,guesslang,lingucomponent/source/languageguessing/guesslang))
 
+$(eval $(call gb_Library_use_external,guesslang,boost_headers))
+
 $(eval $(call gb_Library_use_sdk_api,guesslang))
 
 $(eval $(call gb_Library_use_libraries,guesslang,\

shell/Executable_lngconvex.mk

@@ -13,6 +13,8 @@ $(eval $(call gb_Executable_add_defs,lngconvex,\
 	-D_NTSDK \
 ))
 
+$(eval $(call gb_Executable_use_external,lngconvex,boost_headers))
+
 $(eval $(call gb_Executable_use_sdk_api,lngconvex))
 
 $(eval $(call gb_Executable_use_libraries,lngconvex,\

svl/Library_passwordcontainer.mk

@@ -21,6 +21,8 @@ $(eval $(call gb_Library_Library,passwordcontainer))
 
 $(eval $(call gb_Library_set_componentfile,passwordcontainer,svl/source/passwordcontainer/passwordcontainer))
 
+$(eval $(call gb_Library_use_external,passwordcontainer,boost_headers))
+
 $(eval $(call gb_Library_set_include,passwordcontainer,\
     -I$(SRCDIR)/svl/source/inc \
     $$(INCLUDE) \