[bluetrum] add the rt-thread studio support

bsp/bluetrum/ab32vg1-ab-prougen/.project

+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+  <name>ab32vg1</name>
+  <comment />
+  <projects>
+	</projects>
+  <buildSpec>
+    <buildCommand>
+      <name>org.eclipse.cdt.managedbuilder.core.genmakebuilder</name>
+      <triggers>clean,full,incremental,</triggers>
+      <arguments>
+			</arguments>
+    </buildCommand>
+    <buildCommand>
+      <name>org.eclipse.cdt.managedbuilder.core.ScannerConfigBuilder</name>
+      <triggers>full,incremental,</triggers>
+      <arguments>
+			</arguments>
+    </buildCommand>
+  </buildSpec>
+  <natures>
+    <nature>org.eclipse.cdt.core.cnature</nature>
+    <nature>org.eclipse.cdt.managedbuilder.core.managedBuildNature</nature>
+    <nature>org.eclipse.cdt.managedbuilder.core.ScannerConfigNature</nature>
+  </natures>
+  <linkedResources />
+</projectDescription>

bsp/bluetrum/ab32vg1-ab-prougen/.settings/language.settings.xml

+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<project>
+	<configuration id="ilg.gnumcueclipse.managedbuild.cross.riscv.config.elf.debug.576542909" name="Debug">
+		<extension point="org.eclipse.cdt.core.LanguageSettingsProvider">
+			<provider copy-of="extension" id="org.eclipse.cdt.ui.UserLanguageSettingsProvider"/>
+			<provider-reference id="org.eclipse.cdt.core.ReferencedProjectsLanguageSettingsProvider" ref="shared-provider"/>
+			<provider-reference id="org.eclipse.cdt.managedbuilder.core.MBSLanguageSettingsProvider" ref="shared-provider"/>
+			<provider class="org.eclipse.cdt.managedbuilder.language.settings.providers.GCCBuiltinSpecsDetector" console="false" env-hash="400486564004621042" id="ilg.gnumcueclipse.managedbuild.cross.riscv.GCCBuiltinSpecsDetector" keep-relative-paths="false" name="CDT RISC-V Cross GCC Built-in Compiler Settings" parameter="${COMMAND} ${FLAGS} ${cross_toolchain_flags} -E -P -v -dD &quot;${INPUTS}&quot;" prefer-non-shared="true">
+				<language-scope id="org.eclipse.cdt.core.gcc"/>
+				<language-scope id="org.eclipse.cdt.core.g++"/>
+			</provider>
+		</extension>
+	</configuration>
+</project>

bsp/bluetrum/ab32vg1-ab-prougen/.settings/org.eclipse.core.resources.prefs

+eclipse.preferences.version=1
+encoding/<project>=UTF-8

bsp/bluetrum/ab32vg1-ab-prougen/.settings/projcfg.ini

+#RT-Thread Studio Project Configuration
+#Mon Dec 14 17:48:04 CST 2020
+cfg_version=v3.0
+board_name=AB32VG1-AB-PROUGEN
+example_name=
+hardware_adapter=ST-LINK
+project_type=rt-thread
+board_base_nano_proj=False
+chip_name=AB32VG1
+selected_rtt_version=latest
+bsp_version=1.0.1
+os_branch=full
+output_project_path=D\:/Softwares/RT-ThreadStudio/workspace
+is_base_example_project=False
+is_use_scons_build=True
+project_base_bsp=true
+project_name=ab32101
+os_version=latest
+bsp_path=repo/Local/Board_Support_Packages/Bluetrum/AB32VG1-AB-PROUGEN/1.0.1/Bluetrum_AB32VG1-ab-prougen